Thanks guys, I considered working on a second one with my old door & putting it for sale but the time (increased price) & size would be a major issue. I have smaller projects planned for the future & hope to offer those things for sale if there's interest.
Tom, I looked into reinforcing the hinges but didn't have enough room behind them to add strength. If I start having issues, I'll weld the hinge to the door... or something
Glue or adhere support shims onto the cladding so as you shut the door it slides up onto the shim supports. Then the door is held up by the hinges, the latch, and the shim supports. It aint goin anywhere.