Noob hello, and advise on phased long-term install

Hello everyone.

I hope all are doing well in spite of the current conditions we are finding ourselves in. Thank you very much for this great forum. It really is great to have a support community like this where knowledge can be shared and questions can be answered.

A bit about myself

I am a 35 year old workaholic, staying alone in a 3 bedroom house. On average my electricity use is about 6kw/h during summer and 10kw/h during winter. I am at work from 6am in the morning and most of the time only arrive back home at 6pm. My electricity usage is as follows:

 - I have a full gas stove and oven and use the minimal amount of electricity for food prep. Don't really need any electric for food prep to be honest.

 - I have 80 to 100 watts of lighting running about 10 hours (or less) a day. 

 - My TV utilizes 120 watts with a gaming system pulling another 380 watts, so 500 watts for entertainment 2 to 3 hours every other day

 - Geyser runs for 2 hours a day and is currently the biggest consumer. Has a 3000 watt element installed.

 - Can probably add another 300 watts for other incidental items that may be used from time to time.

 - I do Laundry once a week. 2 loads total with a washing machine with "Inverter Technology". Draws between 400 to 600 watts depending on the mode I use

 - Some weekends (when I don't have to work) I like to do a bit of woodworking in the garage. There are some power hungry machines with the table saw being the worst with a 2.4kw singel phase motor. 

As for what I would like to achieve with the installation. It will be a phased install in three parts where I buy components for the system as I can afford and continue to build on it to reach my end goal while making use of the system during each phase. The idea is to buy good equipment from the start, which can easily be scaled and upsized (thinking specifically about panels and batteries here)

Phase 1(Next 1 to 2 months): Purchase Inverter and solar panels and start using solar when available.

 - I intend to purchase a Sunsynk/Dye 8Kw Hybrid Inverter. I know it sounds like overkill given the above, however I would like to have a bit of future proofing in the system as circumstances can change quite quickly (ie. having to work from home).

 - I have an opportunity to buy 12x 330watt panels used @R1500 per panel. In the current system they generate 3.6kw to 3.9kw under clear conditions. These panels will all be connected together in series and form the first string.

Once these have been purchased, I would like to connect it in a Hybrid state whereby I use the system without any batteries but use the solar generated during the day to substitute as much of the eskom units required as can be generated by the solar. Not 100% sure if this can be done, however I would like to have especially my geyser running here on a timer during the day in order to utilize as much of the solar as possible. I am not sure if this can be done. Some advise here would be greatly appreciated. 

I completely understand that at Phase 1 when there is no Eskom or solar at this point I will not have any electric. 

Phase 2 (Next 3 to 12 months): Purchase Lithium batteries for backup purposes and become grid independent. Next 3 to 12 months)

 - This phase builds on the first, whereby batteries are introduced into the system. 

 - The batteries will soley be used when the grid is off and the solar is not enough to power the essential loads only.

 - The geyser should not be making use of the batteries at this point (Not sure if possible) Can manually manage this on my side with smart technology.

The idea of this phase is to install 2 or more 3.8kw batteries into the system. This is to ensure "the lights stay on" when we have load shedding. If I can literally keep the lights on and be able to power my TV and/ or computer for work during this phase I am happy. In a sense I would then not be dependent on eskom and have power for essentials at all times. The solar and utility will then charge the batteries as required.

Phase 3 (Next 2 yars) : Become largely independent of the grid  and rely almost Soley on own generation.

 - This will be the final phase where I expand my solar capability, adding another bigger solar string and possibly replacing the first string if required

 - Additional Lithium batteries will be purchased during this phase to expand the available power storage to meet the full power demand when solar is not available.

 - Ideally in time it will be possible to run my entire household independent from eskom. Will probably only still use eskom in my workshop as this is infrequent but large loads.

 Well that is my plan in a nutshell. I would really appreciate your feedback and advice on my plan.

I have a reasonable degree of technical ability and would like to do as much of the labor work myself and only use an electrician for connecting/rewiring my DB and making sure of the system compliance and safety. Is this advisable or should I rather fork out (will delay my plans quite a bit) and have an installer do everything.

Thanks in advance for your advice.