Adding solar to my 1997 Gulfstream Class A

So my RV has the system typical of the late '90s, 2 lead acid batteries in the back hooked to the engine battery/alternator with a charger, a 5000w generator, very dated LED monitor panel, etc. I’m adding a solar system to hopefully reduce my generator use to 0. A 3000w inverter should be good for my uses. I’ve compiled the following list of components from reading about how Victron systems are put together, but I’m curious if there’s some points of redundancy that I don’t necessarily need to replace.

  • 2-3 Sasquatch Power 220W Solar Panels
  • Used Samlex 3000w inverter (is it worth to buy a MultipassII?)
  • 400Ah of Lead Carbon batteries (for the cold weather capabilities vs lithium types)
  • Victron Energy - Blue Smart IP65 Charger 6V/12V-1.1A 120V NEMA 1-15
  • Victron Smart Shunt
  • Victron Energy Cerbo GX
  • Victron Energy VE.Bus BMS V2
  • Victron Energy Smart Battery Protect 12/24V-65A
  • Victron Energy GX Touch 50
  • Victron Energy Lynx Distributor Bus Bar
  • Victron Energy Orion-TR Smart 12/12-18 (220W) Isolated DC-DC Charger
  • Victron Energy SmartSolar 100/50 MPPT solar charge controller
  • Victron Energy BMV-712 Smart Battery Mon

This all adds up to a pretty penny, about CAD$5-6000. Am I over engineering my system? Any advice or suggestions are welcome!

You do not need a BMS with lead carbon batteries, this is for lithium. You do not need a SmartShunt and a BMV, they do the same thing.

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