Both transport are old and I know there been problems with Forsell gears in general getting spare parts. Can you find spare parts (laser etc) to P-0s? Both transport looks amazing and I am sure they still are among the best.
I have been told by 3 Audio techs/Moddifiers that you can find spare parts for the Esoteric P70 which is about the same vintage. The basic guidance i have been given is...if you buy one of these, have the laser changed and then also buy a spare...usually about $250-$500 depending on who is sellling. There are some people who feel that, other than the P-O, the P70 is still one of the best redbook transports today.