What the fork?

[Proto2000]

I should know this but I do not. I got a bike back from my son a few days ago that I had built for him 20 years ago, 1985 Jamis Dakar. Gave him a replacement 1998 Jake the Snake, fits him better than the 26" wheels, 700c on the Jake. So I ripped into the bike stripping it clean for a refresh and period correct parts if I can figure out what's needed. The fork has me stumped, maybe from a Stumpjumper? Has the braze-on's on the legs so not likely. Any help is appreciated. I've included a snapshot of the frame too. Yes it's a big frame, too big for me. 22". Jake shot too.

 

[slackboy]

No idea, but a nice stash of parts there. What sort of rollercams are those?

 

[Proto2000]

The rollercams are Suntour, The rest of the bike was M900, mostly takeoff parts so the reason I'm looking for Deerhead for the frame now.