Hi Robert, in my experience, for any armor build ,one of the main things you would always need to adjust are biceps, forearmas and the thighs and shins. The rest of the armor can be adjusted simply lengthening or shortening the straps.
I would recommend you to talk to Mark and give him your , biceps,forearms , thighs an shins measures so He can build then to fit you the most possible so you can have the best looking way !!
Good luck with you project and hope to hear good news soon.
Cheers