I built the electronics. I plan to do solar so I made a spot but didnt install it. I more or less followed these guys but with different components (
https://faroutride.com/electrical-system/). I wanted to build it on an independent chassis so I could build it outside the van and pull it to work on if I ever needed.
Inverter/Charger: Victron Multiplus Compact 12/2000/80
DC/DC Charger: Victron Orion 30 amp
Battery Bank: 4PCS Lifepo4 Rechargeable 3.2V 280Ah li-ion Lithium Battery for Solar System for EV (from alibaba)
Battery monitor: Victron BMV-712
BMS:
https://overkillsolar.com/product/4s...epo4-threaded/
Once I get an AC then I'll need solar but I have more than enough power to do the little things for around 4 days with no charge. I've never plugged it in, I usually just drive to charge which has been working out fine.
My only regret is the battery monitor. I bought it before i knew I needed a BMS. The BMS has it's own app that has tons of information. I geek out on all the numbers. the monitor works fine I guess but it's just unnecessary. The BMS is great though and I would highly recommend. Same with the batteries. I was a little scared getting something from alibaba but they have been great so far.