Thanks All for the contribution,
There are some valid arguments to this thread. Importing a US experimental could end up in a lot of headackes... . Going IFR means forget the the homebuild stuff. I have flown this distance several times west-eastern europe bound in a TMG and yes this means in general from April till October it can be done fairly according planning. Unless EASA comes up with an IFR rating tailured for the GA community the only solution is buying an un-econimal N registered A/C somewhere in europe I guess......