I did my own hinges about 2 years ago. Took them off, made new bushings out of bearing bronze, and installed them into holes I milled in the parts. I realize if you don't have a mill to do that on then you'd have to take it to a shop, but, any decent job shop should be able to handle that for an hours wages ($50/$60), plus perhaps a few more bucks for the bronze. They took a minute to set up cause there's not much to hold on to, but it wasn't a big deal. I did mine in one operation so they stayed as straight as I could possibly keep them. They worked beautiful.