OK, seeing as me and my friend are making the same armour and we used the ame size parts last time, we figure we'll just make one set the traditional way and just mold it and cast two plastic sets, problem is getting the equipment to do so in the UK. I'll look into this Jesmonite stuff that's been mentioned a few times, but if anyone has any tips on where to find the stuff to actually make the mold and jacket that'd be fantastic.
I have a Jarrolds nearby but they only have brush on latex, and the nearest Hobbycraft to me is in... Reading I think and that's a good couple of hundred miles (unless there's one in Norfokl I just don't know about)