I would certainly buy an NTSC version. My only PAL machine is 25 miles from here... Although it would likely work OK on my C64 Mini and Maxi come to think of it...
It is beyond my knowledge, I was trying to make NTSC version but looks like there was not enogh cpu cycles per frame, maybe it could be done using timers insted of raster synchronization - I am not sure - but such approach would require a lot of changes.
