Update (Posted 7th January 2016)
Been working on this on and off for so long and life has meant I've had to abandon it (break-ups/house moves/job moves/PGCE etc etc).
I've decided to go for the costume I love the most from this film, the tank fight battle attire. Wig purchase (needs styling), shoes sourced, trigger finger gloves purchased and awaiting alteration, bodysuit purchased and dyed TWICE (once with no success, then a second time with specialist lycra dye which has worked a treat), flak jacket purchased (awaiting mods/add-ons) and schematics blown up and printed in order to create the CZN-M22.
I WILL GET THIS DONE THIS YEAR. IT'S BEEN A DREAM SINCE I WAS ABOUT 14.
Oh yeah, and I also need to lose about 6 stone.