Powering My Small camper

I have purchased a small off road teardrop camper recently. It does no have much in electronics to run currently. The camper has a 20amp shore plug with outlets that have 2 110 and 2 USB outlets. These are plugged into a 3 way pug the the 20 amp shore line.I currently own a AC200MAX, EB55, PV200 solar panel and Charger 1. I want to run a fridge in a box on the tongue of the camper with a thermal controlled fan for when it get hot and then electrical items in the rear of the camper for the kitchen and two CPAPs at night. Inside the camper is a fan and small heater. Then question I have is how to set up my system through the 20amp shore plug I have and trough out the front box, back kitchen and the internal. Do I need a fuse box, switch, or anything else of that type. Lastly I need to run about 20 foot of cable from the shore to the fridge in the front. Does Bluetti sell anything that can connect all of the different items? Any help would be greatly appreciated.

I’m assuming you are charging the AC200MAX with the Charger1 while driving and the solar panel when camped. Just plug your shore cable into the AC200MAX when you are camping. It will provide the power to the 110 and USB outlets. I’m unclear how the fridge is getting power. Is it hardwired into the tear drop?

I plan on running a 10 AWG 25 foot extension cord from the AC200MAX to the front box and to mictunging 10A-15A AC Port Plug and then connected to a Power Cut Master Switch Disconnect and finally to the the fridge.