Put deposit on vehicle, Dealership not honoring - whats my play?

[PatInTheHat]

I put a deposit on a vehicle and the dealership is now saying they cannot get it for me. Whats my play? The vehicle I want to purchase with specific options is almost unavailable in Canada now.

Day 1:
I went to a Dealership that told me they would be able to get my exact color and options. I worked out a great deal with them put a $2k deposit down, signed all the papers and got my financing started.

Day 2: they called me to tell me my financing is still being reviewed. I was originally told I would get a firm date of when I could pick up the vehicle but this did not happen.

Day 3: they tell me they are unable to obtain the vehicle for me. Apparently they thought they could Dealer trade it from another Dealership however this Dealer had already sold it.

At the time of purchase I was told there were 3 vehicles available in Canada that fit my specific options. 1 of these vehicles was my 2nd color choice. Now there is only 1 available in Canada that was my least favorite color choice. Dealership is offering to get me that vehicle instead but is refusing to budge further on price or give me extract incentives unless I go with a different model on their lot.

Anyone have any advice on how I should proceed?