I would NOT rebuild the motor... LOL Unless you have machine shops local to you that aren't as proud as the ones here.. OMG... I finally got my phone call regarding my build from the machine shop.. I almost dropped the phone.. I ran down there and told them NO and WTH are you doing? Well they quoted me a complete build and it was a tad over $3,000. and a standard build was a lil under $2000.. I still said no, just do my heads...
Start to finish, valve job, new seals, clean, blah blah (plus they cleaned my L67 Intake and block and magnafluxed all the parts) I will get out of there for $335.
Option B for me since mine had to be bored, I found a low mileage L26 out of a 2007 model Buick that I managed to get for $500. I'll build it to as I planned instead of my L36 that I pulled from the car.