Sorry for the late reply. I didn't receive an email for your post, so I didn't get it until tonight while looking for some info on SS and acorn bolts for attaching fixtures etc.
Anyway, the website is: http://www.sunviewindustries.ca/
My contact there is a guy named Kent Miller (Kent.SunViewindustries[at]telus.net) - great guy to correspond with and very helpful.
To answer your questions:
Yes, I did have all the windows done. My front and rear were acrylic and badly cracked and starting to spider-web near the edges. They replaced the acrylic on both, and actually made me new frames/trim rings and powder-coated them black. My walls were originally thicker, and the windows were built up with 3/4" strips around the perimeters. As my wall thickness decreased using thinner insulation and fabric, this affected the trim-ring depth. In sum, new seals, tracks, locks, trim, screens, all for a very reasonable price. The windows, although considered 'refurbished' look brand new. I couldn't be happier.
RE the floor. Mine wasn't glued to the fiberglass floor. When I put my new plywood in, I patched old holes etc from plumbing/gas and misc. items with resin and cloth. I was pretty liberal with my resin etc on the floor before laying my wood down so that it would sort of adhere the two.
Also, before I cut my plywood (3/4" T&G Fir) I coated the entire sheet with resin. I made a paper template of the interior and used this to cut out 4 pieces from one sheet (one large one for the rear, one for the mid, and two smaller ones for the front, all attaching via tongue and groove).
One note - if you remove the foam, you'll want to sand all the glue off the inside of the trailer from floor level to about 6" up the wall so the the new cloth and resin will bind. I rolled cloth in resin and crammed it into the space between the wood and the wall, and then layed 6" strips around the perimeter, 'attaching' the walls to the floor.
RE the walls...My foam was in rough shape from mildew, removing the fabric and just age. That said, out it came. I didn't go nuts removing old glue - maybe 2-3 hours with a good paint
scraper to remove loose stuff. I wiped it all down with acetone, and used my old foam pieces as templates for the Reflectix. It took 2 rolls of the stuff - up here it was about 80 bucks a roll at HD. I used the same 'trim adhesive' used for boat hull liners to glue both the Reflectix and Hull liner fabric aka 'rat fur'. If you're insulation is in good shape, I'd leave it. On the other end, the loss in width will affect your cabinets fitting. I'm learning this now. I will have to build up my cabinet frames to fit before re-skinning them to make up for the 'loss' of material (or 'gain' of space, depending on how you look at it.
Finally, lifting the trailer. Personally, I didn't reinforce my frame. There were no weak points, cracks, just surface rust, which I ground off and tremclad-ed. My flooring was sturdy, and carriage bolted (4 spots) to the 'A' frame. It's not going anywhere.
I did have to lift the trailer off to work on the frame though. It was quite a sight. I had 4 scissor jacks (just auto jacks) which I placed strategically and slowly raised one-by-one in my garage until it was high enough. Popped the wheels off b/c I couldn't lift it any higher in my garage, and dropped the fame onto a fridge
dolly, rolling it outside. It was pretty sketchy. Once complete, I wheeled her back in and set her down SLOWLY, a few turns at a time. The tricky part was getting the holes to line up, but the frame moves around pretty good with some imagination.
That's about it. I re-rock guarded my front and wheel wells before spraying it with marine enamel. In hindsight, I would have painted the thing way back in the beginning. I've had to mask my windows and door twice now which is a PITA. You have to wash it prior to paint
, water goes in (no matter how careful you are) your paper gets wet, on and on....anyway. If you plan on painting
, I'd say do that before any interior work so you can just go to town. My 2 cents.
Keep well - let me know if you have any questions.