Ii just picked up one of these myself. mine has had the sides and ends cut off. is there any way i can get you to take some measurements and post them up maybe a drawing? i have the skills and most the tools to make new sides. i just dont have one to measure to make them. there was a thread i cam across long ago that had the specs and all but i cant find them.
'90 Cherokee 4.0l, dodge hd NP231 w/SYE, open cooling system conversion, HP44 w/ trutrac, 9" w/ detroit, 6in lift, 4.56s, 36's, custom steering & adj track bar, removable doors, TCU control box, on board air, much more