Got it, and read it cover to cover8) (except for chapter on how to make the DIY vacuform machine).
As you rightly said though, what I'm attempting is pretty advance stuff, and somewhat out of the scope of the book, which doesn't tackle anything quite as big or complex (I don't even recall a section of using fibreglass as a mother mold).
I'm probably okay with the finer details, it's just working out the best approach for something this big
.
Soooo.. this is what I think may be the easiest approach (please correct me if I'm wrong):
1. First I apply the layers of silicone to about 0.5"-0.75"
2. Then I apply 2 layers of fibreglass on top of the cured silicone.
3. I dremel the fibreglass outershell into as few parts as possible that will allow me to remove it.
4. I do the same with the silicone (hopefully in just 2 parts).
The pistol will be cast separately, and possibly the skirt (would liked to have cast the head separately too, but this is where I'll need the strength).
Also, might get away with casting the legs, and body separately, with the skirt as a flat plane in between - what do you think?
