P8 will do fine, but you do need to hide/delete the props with Emtr or emitter in the name.  P8 has IDL, but it doesn't have the not visible in camera tick box with which to conceal the emitters.

Dolls?  Base humanoid figures.  Are you wanting to use James?  P4 man (aka "Dork")?  M3?

     It occurs to me that perhaps I should make a P5-P8 set with only the proton pack/cable/gun/beam/ghost (no jumpsuit, no IDL emitters) for universal fit purposes.

     Folks were clamoring for content for Rex & Roxie, so I knocked this set out as quickly as I could.

Poser 12, in feet.  

OSes:  Win7Prox64, Win7Ultx64

Silo Pro 2.5.6 64bit, Vue Infinite 2014.7, Genetica 4.0 Studio, UV Mapper Pro, UV Layout Pro, PhotoImpact X3, GIF Animator 5