Here are a few things to think through that may help you sort this out.
The cabinets in your camper are an RV style cabinet. They are basically fronts, sometimes sides and or a bottom if they are top cabinets. Bottom counter cabinets are the same, front sided, maybe a left or right side and then a countertop. They are not built like home cabinets that have all sides on them and then screw to the wall on the inside as a free standing unit.
The camper cabinets are screwed in from the outside, to the floor from the inside and top cabinets also are screwed in from the attic down. If you want to remove the cabinet intact and undamaged, ideally the camper siding and roof is off and you undo the screws on the outside, some on the inside and they will come out fully intact. They can then be reinstalled in the same spot.
Some have yanked/ripped them from the walls and ceiling as they do not want to save the cabinet. The downside is, there will be dime to quarter sized holes in the wall, ceiling, where the many screws pulled out. There may be wallboard and ceiling board repair if you are trying to save the wall/ceiling board.
You can remake the doors and screw the hinges back on. The newer cabinet sides and front styles are "wrapped wood". Meaning they use the nicest contact paper I have even seen and wrap very light weight soft wood to make it look like oak, maple, cherry, etc. Some have painted them, some may have redid them with different contact paper.
One thing to remember though, the cabinets inside add a level of overall rigidity to the camper as they act as braces to the floor, walls and ceiling. Since they are screwed in securely from the outside, they add wall stiffness to help make the camper more rigid as it tows down the road. If you take out the old cabinets totally, when you put the new cabinets in, make sure they are well screwed back into the wall, ceiling and floor to add back that rigidity.
If you go with premade cabinets from Home Depot etc, be careful of how much they weigh. The RV cabinets are very light weight on purpose. Using premade all sided built cabinets, you will be giving up camper cargo capacity with the heavier cabinets. One or two is not that bad to give up the cargo capacity. Changing and entire campers worth does add up.
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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