It seems there`s a company called Stuart Collins (http://www.stuartcollins.com/index.shtml) - well actually I think it`s one bloke - who write insurance for ex-pats driving UK cars around the continent. I got a quote from him and it`s about 15% more than Elephant, which is a lot less than I thought it might be. My plan is now to switch to them (him) as soon as we leave the country, currently planned for sometime near the end of April. It`s looking less and less likely that we`ll get insurance anywhere that will allow us to drive into Russia, so we might have to get the train from Finland or just skip it.