I got the drawings and renderings back from the forged wheel manufacturer and this is what they can do given the constraints of their current forged blanks. To get the deeper rear spokes will require new moulds which is only viable for 100+ wheels. I am thinking of getting the front design (spokes protrude into the lip area) but with 17x8 front and 17x9 rear. They may be able to do 16", they are still looking for suitable blanks. Price will be approx $1300 plus shipping and duties (probably $1600 delivered.)
Let me know if you are interested via pm or email to derekrwhite at yahoo.com. I am ordering my set soon so there may be some cost savings for UK/EU people if you let me know asap.

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