Replace wood in head with FRP panel?

[Jab]

OK, so I've posted on way too many threads tonight.... Slow night at work...

Another project on my '78 Santa Cruz 2866.

I've restored the wood throughout the salon, but I'm not sure I want to do the same in the head. I'm not really concerned how it looks in there. The same amount of effort stripping/sanding/staining/varnishing seems wasted. And it's not the best surface if we use our shower with any frequency (probably won't, but not sure).

So I was considering covering the head walls with a product made for bathroom interiors. There are many choices, but HomeDepot carries plain white FRP sheets in plain white colors. I could easily cover the whole thing with 2 4x8 sheets cut to fit- less than $75 in materials. Instead of their recommended adhesive, which would probably ruin the underlying wood and prevent any hope of recovery (for me, or the next owner), I plan to use a "removable" and sand-able marine adhesive, and edge molding.

Anyone tried anything similar, or see any obvious problems with the plan?

JB