BuyOne, if there are few, if any, dealers of any color within reach, there is not much you can do. I know that there are folks here who have had satisfactory experiences buying from a far and dealing with the shipping and service challenges, but that may not be for you (it wasn't for me).
From personal experience, I found that it really helped my interaction with dealers to announce that while I was a serious buyer, I was patient and determined to check out more than one brand and dealer. Setting expectations right up front works wonders.
It also really helped to stay a bit open minded regarding the brand. Yes, you will have your favorites, but in my case, it really paid off in the end not to be dead set on a single color. Once I identified a "first" choice, I made it clear to the dealer that I was going to make an effort to do the deal with him, but that I had an idea of what I wanted to pay, and if it didn't work out, I would just keep looking. No hard feelings either way.
After giving him a chance to sharpen his pencil, I told him that I wasn't comfortable enough with his pricing and asked if he could do better. Otherwise, I would need to spend some time exploring "other options." He politely declined to do any better. The next week, I began discussions with the dealer who represented my "second" choice color.
Well, lo and behold, this dealer ended up being the greatest, meeting or exceeding my expectations in every respect. To top it off, in the middle of my discussions with second dealer, the first dealer contacted me and offered to "consider" better pricing on his product if I would show him the written quote from the second dealer. Of course, I politely declined, pointing out that I owed the second dealer the same opportunity I had given the first dealer to "close the deal."
I only share this boring story to emphasize that, for me, everything worked well when I approached the buying exercise as a true process that would take time and would involve developing more than one option. Your only leverage as a buyer is to develop more than one satisfactory option. If you do, and it works out, you may very well feel a little added sense of satisfaction everytime you climb the seat and turn the key.