Ed - Huntercombe is about 2.5 hour drive from Hoylake. For anyone who plans to come to that event who flies into Heathrow, Huntercombe is a very logical/easy place to play a round (half an hour from Heathrow), en route and then next stop up the road you could go and play Beau Desert (near Birmingham).
Of course, as you know, if you are flying in to Heathrow, there are many other golf options to consider - though they are not so much en route to Hoylake.
Winter is a milder affair here than in parts of the US so getting out to golf is generally a non-issue. Occasionally the courses are going to be frozen or waterlogged, but you can generally play through winter if you choose.