It's still the wrong question, unless you just want to get the PPL to prove to yourself that you can do it, and never fly again once you've got the licence. (Nothing wrong with that BTW.)
Assuming you want to keep flying, the question is "can I afford the £2k/£5k/whatever each and every year to keep flying once I've got the licence?"
The £6k or £9k or whatever it costs to get the licence in the first place is not, in comparison, a big deal, as it's a one-off cost which you can save up in advance, or simply add this amount to your mortgage and you won't notice it.
So, one answer is that you have no capital and no mortgage but can afford £2k/year, then it'll take you maybe three or four years to get the licence, but you'll be flying for those three or four years and you'll be able to keep flying afterwards. This may or may not be better for you than spending all your money in one go in Florida, then losing the licence because you can't afford to keep it up - to get more helpful advice you could give as a clue as to why you want to learn to fly and what you want to do with the PPL
(The other hidden cost of getting a licence in Florida, by the way, is that you'll still have to pay for some lessons when you get back to the UK in order to learn your way round the UK's weather, airspace and RT.)