T-30 Sloop 12v Rewire diagram and parts list critique

[SHEAzbird]

Hi, my name is Shea. This is me and my (81 TMI T-30) new Sloop! Then the current electrical panel looking all crappy. Next is a diagram with planned upgrades. Finally, a preliminary parts list.

Do any of you have any specific recommendations regarding things that are hazardously wrong? I would be ok with paying for help with a professional parts list and wiring diagram.

[SHEAzbird]

I've got an updated parts list. Anyone have any advice?

https://www.amazon.com/hz/wishlist/l...?ref_=wl_share

[SHEAzbird]

I think my main questions are: How do I wire the 1/Both/2/Off switch and do I need a Xantrex Echo-Charge or Blue Sea ACR?

Below is an excerpt from https://forums.sailboatowners.com/th...usings.137615/ regarding 1/Both/2/Off switches and how they can be better utilized. I think using it as a use switch seems the best? To do this I would need the Echo-Charge or ACR?

To make your 1/BOTH/2/OFF a "USE SWITCH" simply:

1- Make your house bank #1, or "primary"
2- Make the start/reserve battery #2 or "back up/secondary"
3- Install an Automatic Combining Relay (VSR) or an Echo Charger to charge bank #2.
4- (Bonus Option) Feed alternator output directly to the house bank. If doing this it is best to install a battery compartment house bank isolation switch and create a charge "charge bus". If the bank fails you open the isolation switch and all charging now stays with the reserve battery.