Where to buy a blue suit for a teenage boy?

No I am not the father, but in fact, the boy. I need a blue suit for the costume I am making based off of Team Fortress 2’s SPY (http://tf2wiki.net/wiki/Spy). Yes I know that is a very old game, but I chose that as my costume this year. Now the only place I could find that had a reasonable size and price was here. (http://www.kohls.com/upgrade/webstore/product_page_multiple.jsp?PRODUCT%3C%3Eprd_id=845524892460185&pfx=pfx_shopcompare&cid=shopping3&mr:trackingCode=8AE76BB3-76B7-DE11-93DB-0019B9C043EB&mr:referralID=NA)

What I am asking for, fluther, is a dark blue suit/a good place to buy one, around 30–32 waist and same on the lengths, with the coat, for…. well I’m definitely not going over 150$.

That and any advice on the rest of the costume, ESPECIALLY IF YOU CAN HELP WITH BUILDING THE WATCH.

PS: I already found the mask: http://www.amazon.com/Face-Ski-Mask-Hole-Navy/dp/B000H3G1YE/ref=sr_1_3?ie=UTF8&s=apparel&qid=1284791798&sr=1-3

Still need the boots, watch and cigarette. I have the primary weapon.