Eric,
I have the PE Rigging you are considering, never used it but have "fiddled" with it a lot in trying to evaluate it. I'm with the others, for me too hard, it's bound to sag (read that it does that in a Review somewhere) and in the end very "two dimensional" in appearance. I'd consider the other options, and in 1:48 Scale I believe the mono would look just fine with the added advantages.
Good luck with your project.
Cheers,
Lance