Dedending on what you mean by "custom" Superior Wheel and other places like that can do some things, like width and offset. What do you need exactly? Don
I have had various people custom make wheels to fit some of my projects, the most recent being Superior Wheel. They did a nice job and the cost was very reasonable.........fast turnaround too. Don
Stockton wheel.....excellent prices! Also many of your local dirt track guys could tell you all you need to know about steel wheels