A few answers to your questions I'm planning to buy it from a guy in Delaware and having it shipped to Washington state. I don't think I'd mind it being on a open carrier, as its not a show car.
Open carriers are significantly cheaper. I used Link Auto for my '71 Challenger (driver quality) on an open carrier from Dallas to Denver.
http://www.linkautotransport.com/ (sorry, best pic I have since they delivered it around midnight)
For my '70 Barracuda from Maine to Denver I used Troy Car Inc (
http://www.troycarinc.com). Very nice enclosed trailers, and high dollar cars (Lambo, Maserati, Rolls Royce, and several race cars were on the truck with my Cuda).