i work in imports mate. belive me road freight in the us to the port is crippling. 700 bucks is decent.
but contact sea freight. unless you have an account most of the big guys (dhl ets, fedex) etc wont touch ya.
just did a quick quote mate, if your importing 19 x 10 and they are stacked with no tires weighing no more than 5 kgs a wheel it would cost me 615 dollars to import them using dhl ets. plus tax and customs clearance if over a grand.