The Shot Show is where all the new products get unveiled and where all the Factory Reps are.
Your dealer is probably going to ask one at that time, rather than contact Colt for the piece.
I think he's been stringing you along a bit, since 'probably' is a good term to ask for a higher price, as it gives the impression that he's working hard to get you one.
Meanwhile - there are nickel Colts on the different sites, and they're available through dealers who do more business with Colt.
Good Luck.
Vaya,
Scouts Out!