I can't place the order until mid-late next year anyway as the option is not yet available even on USA Mustangs, the rumour is it will come on MY18 cars and also a potential power increase as to 472BHP.
So of course if a GT350 UK option does come available in that time frame then yes I shall change to that (but manual puts me off), also lets not forget the new GT500 which looks to be a V8 twin turbo with 650 plus horsepower and potentially AWD, if that also comes to UK I shall just order that as that should have DCT option too. I am happy to drop upto 75k on the car and I cannot see them being more than 60k to be honest.