It's been in moth balls for 22 years ( don't ask) and I started riding it in 2017.
Back in 1995 I stripped down a brand new 1995 TREK 520 and sent out frame/fork for custom paint to match my panniers. Rebuilt with the following:
Wilderness Trail/Chris King grease guard Headset
Mavic 637 Mtb Crank Set w/Mavic BB
Wilderness Trail SpeedMaster Cantilever brakes, (I have another brand new set F&R in orginal packaging)
Campy Record brake levers
XTR Rear derailleur & cassette
Hugi (pre DT Swiss) 40 spoke hubs, Campy Rec QR levers, Mavic Module 3 CD Rims, Wheelsmith Double butted spokes w/brass nipples
Shimano Ultegra down-tube shift levers
Salsa high rise stem
Jandd racks and bags / Mt. Zefal Fenders,
Avovet 45 cycle computer