Given the fact that your Salomon is around 15 years old, I would not drag it cross country.
If you are considering a purchase in the future I would recommend that you do the following:
Before you head out to Colorado, call ahead and find out what you can demo or rent. Be specific about your "wide board" needs to ensure that they will have something for you.
See if you can rent or demo a number of different boards, try a different board every day. That way you will be more fully versed in what is available. If you find something you really like, see if they will put the cost of your rental towards the purchase.
Don't like your chances of much selection back home in Florida.
Get it. Wax it. Ride it.