I was also looking into making a smalldrop ergodox kit group buy for Europe, for same reasons as yourself : I missed last Massdrop and I don't want to wait several months. Also as you said, shipping to Europe every part of the kit will double the price, so it is not interesting to do it alone. But if we find 10+ people for a group buy in Europe, the 200€ or so incoming shipping cost becomes less than 20€.
PCB can be bought from your manufacturer, but a group buy from mechanicalkeyboards.com would do it also, shipping cost is reasonable if shared between 10+.
The electronics (diodes, connectors...) is available for 18€ from digi-key (+ tax) , free shipping if we reach 65€ (4 kits required).
Tensy 2.0 shipping is quite expensive with insurance from the manufacturer (pjrc.com). Here is an estimate :
Air Mail 1-3 weeks $ 14.67 Air mail delivery may be delayed in customs or transit. Unlike UPS, there is nobody who can find your package if it does not arrive on time. Because of the risk, please do not select Air Mail for orders over $200.
UPS Expedited 3-5 days $ 72.82 UPS Exedited Worldwide. UPS will use a broker to clear customs quickly, and this can result in an additional fee due when the package is delivered.
But there is a few local distributors
http://forum.pjrc.com/threads/23601-Official-DistributorsThe cables are easy to find.
I already got the key switches from
http://deskthority.net/marketplace-f11/cherry-mx-taking-pre-orders-t2760.htmlRemains the problem of the keycaps...
So I'm definitely in for one pair of PCB (perhaps 2), and I'm ready to help to group the rest of the needed material. Also I'm in France and I volunteer to proxy for France if there is other buyers.