can anyone tell us how to figure out if damage is to extensive for repair

Welcome to the forum. Send a picture and some information on the trailer. Anything is repairable....it just depends on how much time and money you are willing to put into it. Do a search on restoration and there are plenty of posts with pics that some of the members have done.

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"Ruben"
2404T, 2003 2500HD 4X4 GMC Sierra SLT Crew Cab w/Astro camper shell and 2003 Chevy Tahoe LE 4X2
Far West Texas

Wino44, I agree with rceyes comments. It also depends on your skill level. Do you have a classic or a towlite model? Each model has a different structural build. Many of us have done extensive repairs/rebuilds.