Your best strategy would be to Google builders/installers in that geographic region and then add to the list the national builders, like Keeler, and then bid the heck out of it. It is rare to ever find an installer from out of your region who can be competitive on price, simply because of travel cost. I have found that, in a large-scale bidding contest, you will always find that one bargain deal. But the key is volume. While the installer will need to be local, shipping a structure is only a small portion of its overall expense. I have shipped structures from Arizona to Texas, and still had them come in cheaper than the locals could build them for. If you are going to bid it the right way, make sure that everyone is bidding the exact same structure (provide them with the engineering used to obtain your permit).