Good luck and have fun! Are you parking it long-term somewhere while you live it in?
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(or you can get the add-a-room if that would be better)
We added an additional set of batteries, but I think your model comes with them (can you let us know?).
We take a DirecTV dish and DVR with us when we travel. If we're going to be somewhere for a few nights and there is room, we'll set it up.
We put a memory foam topper on the mattress. That thing is super comfy now!
If you're staying somewhere long term and need to use your furnace, get an extend-a-stay to hook up a bigger propane tank. You can go through the stock one pretty quickly when it's cold!
I used the thickest dura-mat on the underside of the dog house to quiet the engine noise. I'm planning on putting it in some other places too.
Exercise your generator periodically. Just run it for an hour and try to put a load on it (AC's do a good job for this).
I'll add more if I can think of any.
I'd love to see more pics of the inside!