Only place I've ever seen them is Rock Auto. But I'm pretty sure they're out of stock now.... Might try your luck with Amazon/eBay/Craigslist. Maybe Parts Geek.
you should try the wrecking yards or pick n pulls? that way you can get an oem door or someone parting a truck out on craigslist.. otherwise you get just the door shell no window or regulator and no door panel
Well where i live im surrouded by ocean .im from the pacific islands so yea most hilux trucks and older years are kind of rusted out ,even if i do find some good condition doors here on island they want a damn arm and a leg
oh shoot, yeah i didnt look to where you were located. yeah i can see the hi price for nice non-rusted parts.