How much is shipping for m3 sd slims from realhotstuff?

well, im getting my m3 sd slim from realhotstuff.com

i was wondering if anyone else has ordered their m3 from here, and i was hoping someone could give me information on how much shipping costs. i live in iowa in the US.

thanks for all the help!

go to checkout and pick calculate shipping cost.

if i go to checkout, does that mean that i must buy it right then?