Yes, unfortunately they charge a hefty sum no matter what your package is. Usually, German and UK vendors charge less for shipping - around 10-15 Euros.
This German shop
http://stifters-gunflints.de/shop/main.php has all sorts of goodies (like some very good aftermarket nipples), but does not take credit card payment. Maybe he will accept a PayPal transaction if you ask. Bellow is my correspondence with them so you can have a clue what to expect:
Dear Boris,
I am not prepared to use credit cards.
I will send a proforma invoice with IBAN/BIC and will ship your order on receipt of your money transfer to my bank account.
Order from Bulgaria
You can order in the Onlineshop without LOGIN.
The shipping costs are for packages with 1 kg weight 14,00 Euro, each additional kg costs 1 Euro more.
For: ORDER / Order form
Fill out the order form with your address and telephone number
Click on Country in DEUTSCHLAND
In the ADDRESS VALUE field, type Bulgaria
Read and click on the buttons AGB and WIDERRUFSRECHT (GTC and Right of Revocation, terms of delivery and payment)
(Terms of use and right of rescission)
Click "KOSTENPFLICHTIG BESTELLEN“ (Order).
Mit freundlichen Grüßen.
Günter Stifter