Neca figure part list / shared parts?

Thanks Dr. yes I saw some alien figure diagrams, and that is a good idea with the epoxy use. I will take some pictures when I get home ( holiday travel).
My last example was trying to put the Apollo creed torso into the Dutch predator legs. Not only were the hip joints different, but so were the thigh pegs... so I ended up cutting the torso, creating my own ball joint waist and attaching it to the fully formed Dutch waist/ legs.

If the problem is that a hole is too big or too small for a peg, you can simply widen the holes or stuff some apoxie in them as needed.

Do you have pics/examples of the joints you're talking about? Might as well start the resource here. lol

Also, I seem to remember NECA posting pictures of their figures fully disassembled. I think it was just for a few of the ALIENS figs though.