Our three station keg washer was made by Beverage Machine Company out of Canada. Its for sale if you don't want the hassle of making your own. It includes the following washing steps:
1. Pre rinse
2. Hot soak
3. Caustic Wash
4. Hot Rinse
6. Steam Hold
7. Final Rinse
You can view it at the following address...
If you are looking for the heads I don't know if Beverage machine would take a small order like that, worth a shot. If you need anything let me know.
Also are you making a three station washer? We do about 40-45 kegs/hour on our three station machine.