Hey guys, Im obsessing over a 84 R80 G/S with 75000 miles nearby. Its around $3000. I know its a question with many answers, but what kind of service life could I see out of this bike with 75k miles? It looks to be in very good condition, and runs fine, but anyone can polish a turd. On the other hand, I am mechanically inclined and dont mind engine rebuilds if necessary,... Any advice would be welcomed!