The 10 will do Western Europe from SFO, but might have some trouble going much farther east, and even Western Europe might have some problems in the Winter with strong westerly winds. Same as the 763. It is a 12-13 hour airplane.

A couple times I did ORD-Germany in the 763 with 200+ knot westerly winds. 8 hours outbound, 12 hours back. It was about the limit of the 763 to make it back.

The 10 will do it most of the time.