As far as i know, ORK and Makinom are stand-alone beasts, you can achieve almost everything with them, but you can also use almost every other asset without fearing conflicts... The only problem is that you have to do integration by yourself (code / add plugin), even if GiL is always so nice with support.
However, for integration Ork-Makinom, there is a specific plugin with detailed info, and as i am starting using it these days, i can tell you that it is really a big boost to project development instead of using one of the two frameworks alone.
About playmaker, i think someone else already did integration with ORK in the past, and i don't see any reason why i should not be possible. :)