I really like the looks of the hinges, they should hold up for a year or two at least.
I take it you must have worked pipeline, looks like you still have a pretty steady hand. Is the door cut with plasma freehand?
The only thing I can freehand is pencil scribbles, and I'm not even that go at that.
I recently went back to using the buzz box working on my trailer since its way nicer to drag lead around vs the whole mig cart. I never used it much on the thin stuff until I bought some 6013 3/32. I was impressed at what I could turn out even with my poor skills. I must admit, sometimes I reach for the flux core machine if I'm working in one spot.
We have a can of 5p sitting at work that I think needs to come home for me to play with. Its been sitting there for at least 5 years now, will have to ask around the shop and see if they want me to help them clean up a bit.
I will be paying close attention to the fix for the sprung doors, I can tell its gonna be one for me to take notes on, for future reference.
Since you mentioned tig, here is my beer chicken holder. A friend made these for us a couple years back, several for chickens out of 2" and a couple for turkeys out of 4" They work fantastic since they really take on the heat and help the chicken cook from the inside as well as the outside.