If you send to the US from amazon.de, you should get an additional 16% off of the normal price. That's the VAT in Germany. I don't however know if you need to pay your local VAT at the customs.
So, one set with shipping should be about 41 Euros. With the weak dollar right now, that $46 plus as I said, maybe local taxes.
Family Guy is not really released in Germany yet. They offer 2 sets from the UK which are Season 1 and Season 2 (released in the US already but for the "forbidden episode").
Use the link from cgef or here to order to support the sites