Welding up the back doors on the fairway taxi taxi

The door skin on the old fairway taxi was starting to come adrift. I took the door off and turning it upside down found the bottom of the door had all but vanished.
Even the thick metal that holds the door seal had broken up into pieces. I made a couple of sections to weld in,the repair wont last for ever but I did find even on ebay doors for these are hard to find and/or expensive. The doors like the rest of the vehicle rot badly,water comes in through the very poorly designed seals.