You probably won't notice much difference between 7' and 8' - most of the difference in the "feel" of a blade has to do with the spin rocker (which is usually very different between blade models) and relative height of the heel stanchion to the sole plate, not just the main rocker radius.
That said, if you want to stick with a 7' rocker I think you'd be perfectly happy with the coronation dance.. they technically have freestyle picks but they aren't large, they're about the same size as your double stars, and the few people I've met who had them really liked them. Eclipse also makes a reasonably priced dance blade (also with a 7' rocker) that is very similar to the MK dance but about half the price (and only a little more than the coronation dance, and about the same price as the ultima dance).