I've been taught and believe the rings will un seat. That being said it's a 6 month cylinder, since it needs replacing often enough the damage of unseating isn't worth crying about...
When your cheap that's not an option simply one could pull the wrist pin and port the jug upside down with the piston still in it. But I am not sure what effect this would have if the transfers have to be done in porting should one do that with the exhaust and intake ports or shall the transfers be left rough...
But even then it's a debate, if you turn the cylinder just a hair then it's not going to be aligned once the crank shifts the piston into place to align it with the rod. I did find that if you put the engine together and manage not to blow it up then there is really very little reason to open it up again. I can understand how the new players want to tear them open, that's how I feel about anything I buy, regardless of what it is.
Well since it doesn't make sense to port it before starting it for the first time I do it without the piston and I clean the shavings out with water and soap. I highly recommend doing porting first, once you know how to do it at least on this motor.
