I made the switch to lithium batteries a little over 4 years ago right after we took delivery of our Beacon. I have some details in this thread: Victron Inverter upgrade.
Regarding your questions -
- You probably have the non lithium ready converter from Progressive Dynamics as Vanleigh didn’t switch to the lithium version until 2021 (see details in this thread Lithium converter setup )
- The standard inverter (1000W) Vanleigh supplied was only really setup for the residential fridge (if equipped) and really isn’t usable for much more than that. I’d opt for a more capable inverter (I chose a 3000VA Victron model) which would allow for more options. Maybe even more than one inverter to be able to fully replace shore power, along with a large enough battery bank.
We’ve been pretty happy with our lithium setup and inverter (disconnected the stock converter as it’s not needed). Still planning to add more batteries to the bank too.