Hey guys so this is my first time doing anything like this, but I'm gonna give it my best shot. I will be doing an Iron man and War Machine suit for me and my buddy. After alot of research I decided to go with the pepakura fiberglass bondo method. I've already pepped a few helmets just to get the hang of it. I'll post a pic of the Iron Man helmet later once I redo it. I have to get my buddys measurements. Here's the War Machine helmet though
I'm not sure if this can help anyone,but I'm 5'3" (kinda small I know) I plan on wearing some lifts to help with the suit. Here's some measurement and what i used for my size.
Head-22" around 17 cm wide/ Helmet used default size fits snug
Neck- 14 1/2" around
Chest- 37" / Torso I used 1.4 scale which you can see in the pic I like the way it fits but limited movement with my head due to the closeness of the neck. I feel I may have to do some mods to it, but I do like this size. I originally built the torso at a 1.565 scale and it's way too big the bottom came almost all the way down to my waist.