Taking a cue from the Star Trek MEGOs I swapped the CTVT KISS boots with boots from the MacFarlane figures. For Ace and Gene I replaced the hands. I didn't do Peter Cris. I don't think his boot replacement would work. The box is from MEGO73.
Quick Tip: When knocking out the knee pins you'll find that the body will twist. You might want to restring them or superglue the body facing forward. Hit me with questions. I'm happy to help out.