This is my first custom and I have a horrible habit of trying to do more than I can. I've assembled most of my materials and sketches. What I have now, before I begin working and posting updates are a few quick questions: 1. I'd like to do them scaled to their real world alternates. I have the specs for the vehicles, but I haven't been able to find any specs or stats on their robot mode. (For instance, Optimus Prime, IIRC, in the movie-verse stands roughly 33 feet tall.) Call it OCD that I want the figures to be true scales to both their vehicle modes and to their stature in the movies. 2. After researching pretty exhaustively and understanding how it's probably a very bad idea to try, I'd still rather try to cast the pieces myself. That said, any tips would be appreciated. 3. When scaling up, do I need to increase the size of the pins/pivots? Rather, if this is a true upscaling of a Deluxe toy, the proportional increase should include the posts and pegs? (I know the ball joints, etc. would) Wish me luck! I'll begin posting part spec sketches/designs as I get them scanned in.