Tom, folks have cut chunks out of the inside of cupboards and filled seams with paintable caulk, then painted all of it. We can help you reglue, etc. When you get to that point, post pictures. Someone will have suggestions.
Complete replacement would never even be on the radar for me. I don't have the funds nor the energy. YMMV
You may want to save the ensolite if you can. It provides insulation (cold and heat) and noise deadening.
Ten Forward - 2014 Escape 5.0 TA
Double Yolk - 1988 16' Scamp Deluxe