5.7 Cylander walls.. can/should i go to 6.1

think something was up so id have to probably go with a 6.1 computer.Ok guys, i just got my 5.7 hemi block cleaned up at a shop. The guy who did it honed out the cylander walls. Heres the catch, i havent got to look at it yet, but the guy who did the work said that there are slight pits in the walls. He said hes seen guys run worse, but wasnt sure if i would get blow back (not sure what that is). He wanted me to check to see if chrysler had some 30 over pistons for it, but i dont think they do from the factory and all the after market stuff is way over priced right now. I know they have 6.1 pistons, but i didnt want to really go to 6.1. Has anyone ran a motor with small pitts in the cylander wall?
I dont have near the knowledge alot of you guys do about this stuff and need some advice. I wanted to keep this a 5.7, but that option my be out. If i go to 6.1 i can get 6.1 stuff from the factory, but will i be able to run the rest of my engine with 5.7 stuff (besides the pistons of course)or will the bigger bore require all 6.1 stuff throughout the engine in order to run right? the only thing i can think of is that with the bigger cylanders, the computer would get confused so id most likely have to use the 6.1 computer,heads,intake.
could i get away with just boring it out to 6.1 so i could use the 6.1 pistons, but use my 5.7 heads? if the pitts arent too bad would you advise just using 5.7 pistons and hope that nothing bad will come of it? Could i bore this 5.7 out and fill it with 6.1 parts? i know the 6.1 and 5.7 have different parts inside, but could i just order these things and make this 5.7 a 6.1? thanks for any advise. I really bought this block to just mock up stuff in my car, but if i can use it id like to. thanks