I see you (and your JP?) are located in Cumbria and presumably want to stay there, that alone is going to limit your chances of getting work as an FI. Depending where in the county you are, I suppose you are looking at either Blackpool or Carlisle, if I was you I'd be talking to the CFI's/owners of where you think you might fancy working once qualified, before throwing a couple of years and £20k at it.
Having said that, I've been doing it for nearly 20 years and I still love it, so if you've got the time, inclination and money-go for it.