“I may bite the bullet and go with LiFePo4.”
You can completely discharge them and still get thousands of cycles.
I put together a system similar to yours. 8 panels, 300Ah LiFePo4 battery. I can charge via genset as well if there isn’t enough light.
My basic goal was to be able to run a fridge and freezer indefinitely, and I am able to do that, no problem.
I’ve got a Bluetti AC300 3000 watt inverter with B300 3072 Wh (250 AH) LiFePo4 pack in my Transit. I’m going to drive up to Renogy and Rich Solar in Ontario, CA in the near future and pickup around 600 watts of panels (2x200 and 2x100) for the roof rack. I’ll also run off of the second alternator or shore power. : )