You could also run a 315/35/17 on the back. That might open up a few more options for a matched set. Toyo and Nitto have those sizes but with regards to Toyo they are more of an auto cross tire. They do have a 235/40/17 I believe.
David offered a good suggestion about possible rim modification. Contact Boyd Coddington instead of American Republic Wheels. ARW are no longer connected with Boyd Coddington wheels. I had contacted Dave Rittenhouse who was with ARW about replacing my 17” front rims with 18” but never heard back from him, so I contacted Boyd Coddington wheels directly. ARW and Boyd Coddington are no longer under the same owner from what I was told.
Also try googling 335/35/17 or 315/35/17 tires and see what brands come up from that search, then see if they offer a matching front set in the size you want