You can hire an independent programmer to program a crestron system, however, you may still have a problem getting the eqipment. The independents are certified to program not to sell. Do you have a crestron dealer in your market already? If so you may try to work out something with that dealer or see if crestron will sell you the product direct with the understanding that you are hiring an independent. If you have no dealers in your area, you may be able to work something out with one of us crestron guys that frequent these posts.
"Some may never live but the crazy never die" ~ Hunter S. Thompson "There will be plenty of time to sleep when I am dead" ~ Me