Well here's the start of the remodel on my 2005 Keystone Springdale 295BHL. We bought it in October and are full-timing since our move from NYC. It's almost as big as our apartment in Manhattan, LOL! We wanted to be able to heat the place on electric and I fell in love with a wall-mounted electric fireplace at Costco. Problem was, there wasn't a big enough wall to mount it (or our TV) on so we modified the wall into the bedroom.
Before:
After:
My phone died so I lost the in process pics but we basically opened up the wall on the left side and re-framed it 48" wide (instead of 24") with 2x3's and re-skinned the living room side with 1/8" hardboard. Still have some trim work and a mantle to add but it's working well as is till we figure out what we want.