Not going to have time or energy to build this guy back up. It is a large/xl sized frame. In the photos with the tape measure, I measured from the TOP of the seat tube/collar) area. It is approximately 22" from the center of the BB to top of the seat tube. and about 23" from the top of the seat tube to the center of the headtube area in a straight line. I do not know how GT would have actually sized this bike back in its time, so these measurements are what I feel is the best estimate of that. The top tube is quite a bit below the top of the seat tube, so there should be good clearance. 

This is for a 26" rim brake wheel bike. 135mm rear hub spacing. 68mm BB shell. The seatpost shown is included. Headtube is long and will take an 1 1/8" fork around 100mm of travel (see my other listing for marzocchi bomber, that fork was mounted on this bike before I acquired it). V-brakes. Rock Shox Deluxe coil shock is functional as best I can tell in the basement "squish" test. Has an aftermarket Speed Spring by Eibach installed on the rear shock. Labeled 1000 x 38 (unsure of what that means exactly) 

There are knicks/paint chips on the frame. Markings from occasional chain suck/slap on the drive side chain stay near the BB shell/pivot area. Derailleur hanger is straight. Good candidate for someone that has more time than I do. It is a used bike, that I have never ridden. Just a project I thought I'd get around too and never did. I've done my best to list it accurately, if you have any questions, please ask me and I'll answer as best I can.