Welcome Wayne, the choice of your costume must be personal. Maybe I'll be biased, but if I have to give you some advice, I recommend a Stormtrooper armor
Stormtrooper armor on the European market costs approximately $ 500/600 and is sold in pre-cut kits. I advise you not to buy junk sold on e-bay and only target people inside the detachment. Also because not all the armor that you will find around are approved.
Welcome, you have definitely come to the right place, unfortunately I only know European suppliers. But I'm sure my colleagues will be able to direct you better