In my 1995I did a simple Renogy 2000 installation. I wanted to run my microwave and a second outlet under the TV for my SpringAir mattress pump and miscellaneous other items. I did not want to mess with a transfer switch etc. I am pleased with the Renogy, just make sure you buy one with a remote control switch.
I installed the inverter in the pass thru, vertically on the rear bulkhead. I had Windy Nations make up the cables, includig a 12" one from the positive batery termonal to the fuse. My batteries are on the tongue.I wired heavy cables from the battery to the inverter. Then I cut the female end off of heavy extension cord. I installed a new receptacle next to the existing microwave receptacle. I ran the cut off cord end from the inverter, below thhe trailer in looming, up along the refrigerator , behind the microwave and to the new receptacle.
When I boondock, I simply unplug the microwave and plug iit into the adjacent inverter outlet. I wired a second receptacle below TV.
I istalled the remote swiitch below the water pump switch panel and ran the wires and plugged it into the inverter.
Secured the loom protected wire under the trailer
. System works perfectly, inexpensive and fewer parts to fail.
DO NO FORGET A 12V FUSE NEAR THE BATTERY.
pm any questions, good luck