You won't have any problem with the rings not sealing if you pull the block. What could possibly change at the rings? It's not like they stay in the same position on a daily basis. People just come up with such weird, unfounded ideas.
I had a bike motor that, after I rebuilt it, just pumped oil like a derrick. I must have taken it apart 4-5 times (lotsa money on a new gasket set each time) looking for the problem. Finally, I took it to another machinist/car restorer/2 stroke guy I know and he looked at it for 2 weeks and finally found a spot where the bore was messed up on one side. Honed it right out. The original machinist boring bar had broken down and gouged the cylinder (not that he'd admit to it)
I never had a problem with the rings not seating again after taking it apart.
Like I said, if you're going to take off the head, go all the way or you'll probably be taking it apart again to replace the base gasket.
yEP,THIS IS TOO MUCH FOR ME.i GIVE UP.I NEED FOR SOMEONE TO JUST BUY IT FROM ME.