Trying to save a Coleman 2003 Mesa

[RVCSBVOB]

I'm rebuilding my storage trunk on my 2003 Coleman Mesa and I need some info on where I can get a good lid and frame assembly. So far I'm striking out.
If I can't find one,and not being fiberglass, how can I repair some major cracks in the framework? HELP!!!

[twins89]

https://sites.google.com/site/campingfamily1website/popup-camping-websites/fleetwood-coleman-parts