I was able to make over 30 molds of individual muscles for the torso and upper arms. However casting with the red silicone did not go so well due to air getting trapped inside the molds while pouring. So I have ordered a syringe and will try injecting the silicone to force the air out. The only two molds that did cast well were the serratus anterior groups. Because of their size, the pour hole opening in the mold was much larger than the other molds which allowed the air inside to escape better.
So this morning I attached them to the skeleton. The expensive adhesive and primer I had been instructed to use actually did not work at all. So for now I am using gorilla glue.