what is available in 14 in sbc new wheels

I'm pretty sure you can still get Cragar 14" rims in SBP. Here's my car with 14" x 6 Reverse rear Cragars which were cut and widened to (roughly) 14" x 10" (maybe 11", I don't remember exactly) with Mickey Thompson N50-14 street tires.

Also, last I checked, Monocoque will make whatever you want (within their style) regarding width, diameter, backspacing, bolt pattern, etc. Hopefully, they are still in the business. I believe they are strictly drag racing rims though. That's what I have on the car in the second picture. They are 15" SBP rims front and back with rear bolted to an 8-3/4 with drag slicks.