Outback in Calgary is definitely one option. Of course you will be paying for someone to do the work. If part of your problem is the textured surface inside the trailer (AKA ensolite) separating from its backing, that may be worth spending the money on to get fixed. On the other hand, a sharp knife and some contact cement can work wonders with that stuff.
Also, these trailers are so simple that most work can be managed by anyone who is reasonably handy with a few tools. Use the search tool at the top of this forum page to look for your specific problem, and many potential solutions will present themselves.
You are also very lucky to Have David Tilson and several other members of this group in your neck of the woods. They are all very helpful, in any way that they can be! I'd be happy to help, too, but I'm in Edmonton - not as close as the others...
Have fun with it!