Price check aisle #5 please.

I have a red 1975 GL-1000, been sitting since 1989.  The engine was locked up but I bumped it over and my hopes were high.  I laid the bike on each side for  week with PB Blaster soaking in the jugs.  It should be better but I have fears long term.  Will it burn oil, lose compression, did I score the cylinders?

This blue, running, 1975 is for sale a coupla hundred miles away, for $2500.  I would remove all the Vetter stuff, put the new tires from the red one on it, and some other things, and then sell the questionable red one.

Thoughts?

This is the only picture in the ad.

Not seeing a picture.  How good is the blue bike?  I could see paying $2500 for a near perfect GL-1000, like a "I'm not scared to jump on and ride 200 miles at the drop of a hat, maybe not ready for a multi-day trip, cosmetics okay but not perfect" example.