If your going to fly in the UK, train in the UK. If saving a few quid during training means more to you than the actual flying, 'ave a word.
Go and hour build anywhere, but the important part, the building blocks of training that you'll carry for the rest of your life, those are a very different story.
When I have time, I'm doing a 'spare seat ride' for someone who trained US and now lacks the confidence to fly in UK airspace. It's not the first person I've did that for either.
Controversial maybe, but you asked for an opinion, and so you got one.
Good luck though, and welcome to the hampster wheel that is G.A.
