After you fix it up, what do you plan to do with it?
It's been sitting for 25+ years. Tires, tubes, brake pads, brake and shift cables, new chain, new freewheel, new saddle. Overhaul 8 bearings.clean and lube derailleurs and brakes. Cosmetics.
It was a lowish end carbon steel frame to begin with so little, if any collector value. This had better be a labor of love because, economically, it's not going to cost out very well.
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My greatest fear is all of my kids standing around my coffin and talking about "how sensible" dad was.