There are several visits you could make - my preference would be Salix, although as people have said already B3, plus a couple of dozen other makers could be a great experience as well!!! And it is very clear that everyone has their own favourite and therefore you will not get ne definitive answer to your question.
So I would see who your favourite is, and which batmaker would get you the most excited to visit?
If you are looking for 2 or 3 bats for around £1000, then you have al the choice you could dream of!
So I would recommend that if you are playing some cricket over here next season, you are no doubt over here for a few months or longer? And that is plenty of time to take a look around, look at teammates bats, look at bats of people you play against, and speak to them about their bats. But most importantly just take your time to choose!
However, if you already know the profile that suits you game best, or have a trusted bat that you love and would like copied, then you could do a lot worse than Affinity, Red Ink, etc!