Green Lantern- Fun with bodysuits

I was delighted when one of my friends contacted me about making him a GL suit. However I've never sewn a body suit for a man...and never one with now front seam! EEPP! I had no pattern to go off of so to the interwebs I went! I found this: and thought that it "didn't look too hard". Well I'm still muddling through the directions- hopefully I will be able to grok what the frack is going on...soon.

So while I wait for EmKay to get me some more measurements I am going to try this method on ME and see if it's even feasible.