Hey man, you are fairly local, I have a selection of forks here if you have a need, some are fairly high end, I get bunches of stuff on pallets, long story, but I will shoot pics and send them along. The price is, figure out how you want to get it and toss a donation in the coffee can, whatever you can afford (this is why I don't want to do this as a business, so far that coffee can is actually doing just fine I imagine the IRS might eventually want a cut, wonder if they like Yuban... figure get a little can toss some money in and send it to them)
Oh, did not read the top of the thread.. 20" suspension for a fat tire folding bike...
Uhm, can I interest you in a complete chassis? it won't fold, I done fixed that particular snafu on all the bikes I have that did that.
Scrape one kiddo off the street with a folding bike lock down failure and you suddenly get the welder out....