16" rims that fit Evo's front Brembo calipers are made only with one width and offset, from what I know.

As for the information and possibility to get them in the USA, I suggest checking two places:

http://www.agforged.ru/contacts/ - official site (unfortunately English version is more limited, than Russian)
http://www.forgedwheels.ca/ - official representative in Canada (according to the official site)

Hope this helps.

 

Hello.

How much did the rims cost? Are there more colours than white?