It doesn't matter when you have it properly reenforced as long as you do it before towing it very far. There are several ways to strengthen it so take it to a qualified shop and let them choose the best way.
BigBill, I think he was talking about the "trailer body" being taken apart, not the frame.
I agree that the frame could be towed short distances "as is".
Yes John I was saying to go ahead and repair the body then take it to the repair shop, but do it before going camping in it.