I use an AC70 with a 200w panel on the roof to power my entire van (fridge, heater, lights) I then use it to power one of these:
https://www.amazon.co.uk/dp/B08Q3ZP...=2CHH0DXCJ6JQA&psc=1&ref_=abl_lv_ov_lig_dp_it
I have it running in Power Supply Mode (switched via the app) then run it to a 6 way 12v fuse box and then to your appliance's, job done ! see below for rough layout.
200w Panel ---- AC70 PowerStation ----
240v---- Victron Bluesmart 12v 30amp converter ----
12v---- 6 way fuse box ---- Appliance's.