The seller I am speaking to can send in one package for 65usd! Must wait 4-6 weeks though, so I guess it's by sea. The saving makes the VAT bearable.
You can calculate the USPS shipping costs here if you know the rough weight of the package and will get all info on size limits etc there as well
Interesting to see that ground/sea freight to the UK has the same (large) size limit than air. To most of the remaining Europe sea freight must be much smaller in size and a bike frame would not fit into such a parcel.