Billy/All,
I appreciate the thoughts but at this point I'm really considering just going ahead and tearing out all the internal cabinetry and such and just buying 1/4 or 3/8" ply and putting it down right over what's there (after just a good cleanup, maybe some bleach based spray to kill any mold/mildew and then dry it out best I can) and then using either 1/4" ply or 5mm Luan (sp?) and covering up all the side walls similarly. Basically just building a box within the box so that I'll have a nice clean new finish on the entire interior. My reasoning is this. I examined the floor and confirmed at an RV dealer that the floor in this trailer is ply over an insulation layer over ply and it's all glued together! If I go to pull that out it's going to be quite the mess! I'd probably end up having to pull it all out and rebuilding the whole thing. Liable to be expensive and a big job. Neither of which I really want to tackle... Will if I have to but hoping I don't have to! If I fix the leaks I think just covering it over will last a very long time. and tearing out all of it does have the plus that whatever I put back in for storage (cabinets, deck boxes or whatever can be where I want it, not wherever it already exists. Very flexible. I hate losing the counter top but don't THINK I can keep it and accomplish this without adding a bunch of complication to the project... Oh well, I can always add some back in, can't I!?
So 3 sheets of 1/4 or 3/8" ply, sanded one side and 5-6 sheets of Luan plus plenty of liquid nail should be enough to form a nice neat box... Maybe even put small quarter round down along the floor edges and up the corners and make sure all the edges are well glued and/or caulked. Then Kilz the whole thing and paint the sidewalls a nice semi-gloss white and carpet the floor with some cheap, very short napped carpet. Also saw some nice plasic L shaped corner pieces (kinda like molding) at Lowes that are about 3/4" wide. I think they use in drywalling to protect outside edges. If I apply a generous amount of sealant and lay that down over the top edge of the luan/sidewalls it should help keep out any occaisonal moisture and keep splinters at bay... The only thing I am still not sure about is keeping the one bench seat (front right) which has access from the top of the bench inside and outside the trailer via a key locked hatch... I could just rebuild something there I suppose... Will need to build a small "box" to house the battery and inverter in the front left as well. Need to also move the electrical outlets that are in those back cabinets to the outside wall... that really shouldn't be difficult... Lots of work to do, but it's all fun!