1st grumpy,
Congratulations, youngster
!
Contrats on both latest b-day and on that great birthday present, love it
Regarding the engine, if you are not into the speed thing, you are better off, IMO, to keep as much 'meat' in the cylinder areas as you can get. So, you have better than the .080 pistons present...and that good,eh ! While at it (getting an expensive rebuild), you may as well consider having builder putting cylinders back to stock ? Probably best, with least future problems, if done correctly. You have a lot of fun/serious decisions to make otherwise also, i.e.- poured or insert bearings, stock or full oil pressure and on/on. Good luck and have fun !