Welcome! I have a 2002 Damon Escaper so we may be the same or not. I hope this helps. The water heater panel in the bathroom just pops straight off, to put it back on just hit is with the heel of your hand and it will pop back on- one tap at each corner.
I am not sure what to suggest about the levelers but on our unit if one is down and you need to bring it up there is a little hand operated screw on each solinoid that will let it come on up. i had one I had to lift up with a pry bar till I got it rebuilt so I would open that screw, pry it up and close the screw. You might contact Stuart's Service in Indiana for help with the HWH system, they really helped me.
2002 Damon Escaper (Sassafras). 3126E Caterpillar, Allison 6 speed.