Welcome buddy.
They are basically a Scout but in Black.
Gloves, get the Sith Armour ones, they are just superb and really good for the price.
Here's an eBay link (UK one, sorry)
http://www.ebay.co.uk/itm/LEATHER-GLOVES-LIKEN-BIKER-SCOUT-BIKERSCOUT-SMALL-/230689184132?pt=LH_DefaultDomain_0&hash=item35b6259984
They do all sizes, so just contact them.
They are so good, I've used them on my bike with considerable success!
Boots, These can be made nice and easily by using the Biker Scout boot tutorial. Just remember to do them in Black! I've just finished a set for another UKG Spec Ops Trooper.
Jumpsuit. You can use a boiler type suit, which is nice and cheap, but a really good one is the OMP Mechanic's suit. But that's about £50.
It will need the knee pads unstitching and the flaps and straps adding to it.
Flak Vest, Cummerbund and Pouches can be made (if you're handy), but there are plenty of people out there that can make them for you at a reasonable cost.
Good luck with the build.
I'm just updating my own armour to a nicer set. I'll post pictures when I get it completed.