Thanks guys! Yes it is an ESB Ugly, and I will be selling the armour as well. I'm not sure I'm allowed to post prices outside of the Junkyard, but feel free to PM me.
As to the gunmetal question, this was done for a 501st member, and I use a darker gunmetal for the 501st. It's not technically prop accurate, but on the whole reflects the generally darker lighting that was used on set and seems to fit what costumers want a little better than the lighter colour that was actually used.