Sorry to be so sporadic about writing. We care for our 3 grand kids during the day and all to often have things to do at night. As for the TV I changed ours out also. I used an old shelf that has about the same design as the rest of the woodwork in the MH. On that I mounted a swivel mount I bought on Amazon. ( Amazon.com: cheetah tv mount ) It's just a small TV but far better than the one that came with it. If you'd like I can send you some pictures. I'm actually going to attempt to install a different panel in there. I have some laminate flooring that I'll try. I think it'll look a wee bit better than what I already have plus I missed centering it by about 1/4 " and it's far to visible to my eyes.
Wish i could offer you more info than you can handle but .... this one is new to us this year. We've used it just once so far and it was fine but to offer specific advice .... sorry. We had a 26' class "C" before this one and there is a world of difference between those but that isn't anything that'll help you. I would be curious as to what you get for mileage when you do get going. I have the Chev 454 and on our first trip we managed a 9.62 MPG's. I sure hope that holds out. Not sure what your exterior looks like but ours was somewhat dirty and a whole lot faded. I also cleaned that all up and it now has a stunning shine to it. It's all done with a floor wax. I think the prep time was longer than the actual waxing.