Congrats on your new Sunny and welcome to the club.
I also happen to have a T2475, it is a 2004.
To what extent of removing the wall between the kitchen area and the bedroom are you thinking about? All of it, part of it etc? and what is the new feature you are wanting to create?
Reasoning for asking deals with the left to right stability of the camper and other things relating to how the camper is built.
The wall starts on the left side of the camper. I'm not sure in yours, but in ours the furnace is under the couch. The furnace would be difficult to relocate. In this case you would not be able to remove the wall all the way to the left side.
Overhead cabinets above the couch. These are screwed in from the ceiling and the screws in the top are only accessible from up in the attic of the roof. Meaning under the rubber roof which is not accessible easily. If you pull out the cabinets from the ceiling board to deal with the screws, there will be a good number of torn out holes in the ceiling board to figure out how to deal with.
If you remove the wall down to the floor tile, there will be a level of screw holes in the floor tile exposed. Those floor tile holes are not a structural concern, but the looks of the holes in the tile may not be appealing. Also there can be a shade of color difference in the floor tile from sun fading.
Stability, the way campers are made, the interior walls and cabinets actually create structural stability to the camper. The is very different from a house as the walls are so thin in a camper. Meaning, if you did totally take out all the cabinets and the walls, the camper shell (the walls) would very wiggily. Towing many miles in that condition will sooner or later start creating issues. Some being leaks in the corners of the camper as the corners flex, the sealants are stressed. And the more movement, the faster the stress and the cracks in the sealants start leading to potential leaks.
That said, the part that is not known is, in your vintage T2475 will removing some or all of that wall cause left to right stability in the camper? This all comes back to, how much of the wall are you talking about, (try and be specific as you can) as some minor things may not affect it, but some larger ones might.
Hope this helps.
Current Sunlines: 2004 T310SR, 2004 T1950, 2004 T2475, 2007 T2499, 2004 T317SR
Prior Sunlines: 2004 T2499 - Fern Blue
2005 Ford F350 Lariat, 6.8L V10 W/ 4.10 rear axle, CC, Short Bed, SRW. Reese HP trunnion bar hitch W/ HP DC
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