Hi Bobby,
You've certainly been doing your research!!
I can't talk about those two suppliers from personal experience, but there are a lot of guys on here that have used them before. Best advise I can give is to contact them both and discuss your measurements and requirements in detail, but I've not head of a costume yet that hasn't needed some small degree of tweaking. If that's the case then don't worry, the help you'll get here and through your local garrison is second to none. Ask lots of questions and post lots of pictures, and you'll be trooping in no time.