Love the old MTB's, I used an old GT for a few years to tour and wouldn't mind another one to fettle.
I have a Discovery 501 that I tour on, no problem with it's carbon forks and it's been all over Europe on rough stuff.
I bought this last year for £60, I bought it for the frame really, just about everything else was shagged. Can't remember what I spent on it but I think in total, about £225. Think I'll add some butterfly bars to give me more hand options but it's proved a very comfortable all day rider this summer.