Thanks for the comments guys!
link4044 - Just working with what I can find in the shed. In fact until I started this project I'd never worked with metal before, so it's all a big learning process (hence my slow progress thus far).
fightstar - Glad to see another Marine in the making, checked out your sketches, good work! I'll be watching your progress with great interest!
I've pretty much figured out how I'm going to attach it all. Elastic, velcro and snaps should do the trick, haven't actually attached anything as of yet, I plan to make all the armour first (plus I'm still sourcing the soft-goods for underneath the armour).
Should have some more stuff to share with you all soon ;-)