OH MY GOSH IT IS SO COOL!!!!!!!!!!!!!!!
IT IS DONE!!!!!! I will upload pics soon.
I procrastinated for 1 week because I was too lazy to sound down the edges that had the raft stuck to it. Also, I was too lazy to figure out which parts to order, wait for them to arrive, and I also didn't feel like spending money. So I used blender to extrapolate the dimensions of the cylindrical holes, and I printed the pieces instead. I will upload the connectors as a separate thing and link it as a remix in case someone wishes to 3D print the connectors rather than buying them or using glue.
This is absolutely amazing! Unfortunately, I couldn't see a thing with the helmet on, so I'm going to print your visor with holes now :-P
Pics to follow!