Cheers for the suggestions all.

@voicecoil I hadn't thought of Tormach, and ironically the first thing I saw on their website was "yes, they do cut titanium", so they may be a good shout!

@dazp1976 we're hoping to avoid Haas if we can, heard too many horror stories about their servicing costs & level of customer service

Wondering whether Syil is worth a look as well, seems to be a couple of people cutting titanium on their smaller machines but I can't be sure how well they're coping with it