Fuel

Hi all I am in the planning stages of a European vacation that will involve shipping my car over in a container , probably to the UK to start but really that will be determined by cost , inspection requirements etc ... .
That said my first question is what is the availability of 92 or higher octane gas ? can I get high octane pure gas ie no ethanol ? and what countries if any have no availability for quality fuel ?
Second question is what is the best country to send the car to as far as inspection requirements and temporary plating ?
I was originally planning on coming over the spring of 2016 and am still sort of shooting for that timeline , hopefully I can get the car over in the early spring , spend 4-6 weeks cruising and meeting FABO members then get the car back to the East coast of Canada in time to hit Moparfest in mid August while doing the coast to coast cross Canada trip , any help , advice and info is greatly welcomed .