There are plenty of those deep Eyes suits out there, I've seen them up for sale by previous owners every 6 months or so.
They were made by Nightmare Armor which is now rebranding as Exomechs, they've started changing up their suits, everything they've made to date is getting mixed and matched to great effect:
If you're specifically looking for a Deep Eyes suit though, I'd suggest staking out eBay or hunting around in costume forums, I've seen several for sale in the past year.
However if you're looking for something of that quality, there is a Butterfly Chronicles suit up at eBAy right now: Industry Grade Armor Prop Suit
I reallly like the helmet and the upper body armor. Not too big on the shorts with the big "Caution" sticker on them though. I think it would be cool to use something like black BDU's under the armor and create something similar to the movie version, but not exactly the same.
Have to say don't know these suites very well, but went to that site and had a good laugh at the girl armor wearing high heels in it!! Fantastically funny...
Hangar18 Studio's Deepeyes armor blows the NAS stuff out of the water. If you want an amazingly well done Deepeyes, you have to keep your eyes peeled for the Hangar18 stuff.