While in Virginia USA try this salvage yard as they have two right side white doors from this X1:
http://mandmautosalvage.itshelp.us/a...s.asp?s=130604
http://mandmautosalvage.itshelp.us/a...k.asp?S=130604
Shipping might be $$ but then again. Could be way less than what you are currently looking at by half.