new grey wheels

[my56chevytruck]

OK, this has been hashed over a few times, but my situation is I need help finding a set of wheels that match my suspension. I'm wanting a complete set of wheels front and back that go on my 56 chevy truck, with a 2nd Camaro suspension/rear end. I have 15" wheels on it now, and what I am wanting is grey spoked mag wheels, 15x7's with 4.50" back spacing. I'm not aware at this moment what my offset is, but I know I would like to find wheels based upon my current measurements and desires. So as you can see, I'm needing your help, can you locate a name of wheel I can look at for my truck? I've looked at American Racing and Vision wheels, they are close, but I cannot find the 4.5" backspacing I need. I'll thank you in advance. Pictures would be greatly appreciated.