I did try American wheel but they said they don't do that kind of work. They actually said to call Stockton wheels. But the place in Van BC said he can get the barrel. But inside diameter has to be 15.470". These barrels only come in 17x7 and 17x8. The place is called Green's automotive. I think they are actually in Richmond. Not right in Vancouver.

 

I have a homemade gauge I made for such issues and I get right at 15.25" across the diameter of a widow maker center disc. That might be off by a small fraction, but no way by nearly 1/4". So it might be that Stockton adds a sleeve or in some other way makes up that small difference. Might need to quiz them, or have your local guy speak with them. Stu