Hi John,
this could be a little hard to cope with...as you will have to pay customs duty and all this stuff, when you export a car to Sweden. I know that cars in Sweden are much more expensive than in Germany, so it won't really help (I guess) if you buy this car in Germany.
But if you would like to do it that way, there are some car dealers around, who sell right-hand-drive-cars for members of the british Nato-Forces who are stationary in Germany. I think that they know a lot about the fees and all that stuff. Maybe you should first ask those guys for any information about dealing with this.
Have a look into the net.
Regards and good luck,