Yeah, shipping something that big from WA to FL wouldn't be cheap!
That is kind of a weird height adjustment mechanism. I think the first Mirage that I drove had it, but I didn't think about it at the time. When it came time to buy, I just wanted a 5-speed, a color that I didn't hate, low mileage and the right price.
How much adjustment is there, though? Is it enough to warrant seeking out a seat from salvage? I'd like to see something like 2" lower.