There are a few different ways you can go. I bought a hub and had a shop lace it up. Or, you can buy a new or used Sportster wheel and go from there. Depending what year you have, you might have to change bearing size. My 04 has 1" bearings, earlier years use 3/4". Other than that it's a direct bolt on.
Kink, what tire size did you have stock and what tire size are you running now. did you have to relocate the fender at all? I know some wire wheel manufactures will actually manufacture a wheel with any hub fitment you want, kind of like what you did but I was wondering with a change like that if you had any fitment issues with the tires or fender?