Ok, regarding rabies, to my knowledge Scandinavia ie Sweden and
Norway are regarded as free of rabies as the UK and as adamant at keeping it out. We experienced this understanding when extensively travelling with Gustav through all of western EU,
USA, AND the UK from respective customs people. They typically said something like, "oh you come from Sweden, you have stronger tabs on rabies than we" and when showing his full vaccinations docs they were just smiles in the UK.
It would rather seem that the UK only have one entrance port for
pets, irrespective of transport, air or sea company (forbiddingly expensive) or by Dover*Calais car-train. I had hoped there would be more
ports of entrance, ie in Scotland. But if not, then thats how it is, and we sadly will not be able to sail there.