1998 A6 front passenger door skin
 

Hello,
So I have front passenger door on my silver 1998 A6 sedan badly bent and looking to replace just the skin at lowest expense possible. Just a year ago I took the same door apart to replace window plastic clip so I'm capable of replacing the skin, I guess. This is my station car, I make 2 miles a day and use it rarely on weekends to run local erands so hope to use this car for years to come. In short I can't stand this huge dent on otherwise good looking car but promissed myself not to spend hundreds of dollars on this car anymore. Anyone knows of junkyard where I could find used door or just a skin in New York City area. I tried to look it up online but no luck so far.
Any help will be highly appreciated.
Thanks,
Jacek