He's asking HOW to do it not where to go.Usually there are companies in metro areas that have that service. I would speak with a tech or owner of some local tire shops, or google "wheel repair" and your zip code or large city.
Edit:
Oh look, first thing on google for "Des Moines wheel repair":
http://www.desmoineswheelrepair.com/
Here's another servicing the Des Moines area:
http://www.awrswheelrepair.com/desmoines/
I certainly wouldn't recommend he do the repair himself. Not as cheaply as a wheel repair place can do it and do a better job.He's asking HOW to do it not where to go.