Love this game. Muria is a bitch to find. Also, I feel Coal Baron borrowed a little too heavily from this game, in my opinion.
Milan-Spiele has the expansion and if you grab a few games shipping's not bad. Odds are just for this expansion and shipping to the US would be around 44 Euro, their base shipping is 22 Euro to the US but I've ordered from them a couple times and have had an excellent experience.