A long shot indeed.
I’m afraid you’ll just have to join the rest of us who now live in debt!
There is no way that I know of that does not involve funding CPL then FIC courses on your own. You might, just might find a school who will help with the funding of you FIC, but that is a long shot these days as well. At any rate you’ve a long way to go and a lot of burgers to fry until you get to that stage
Cabair and Atlantic run partial sponsorships, which involve a couple of years as an instructor, but it’s with a view to you moving on to airlines (in theory). It will still cost you a lot more than you will earn at McDonalds in the foreseeable future!
The NPPL is ‘apparently’ on the horizon and there is talk about instructors for that course perhaps not having a CPL or CPL/ATPL ground school passes, just hours and an FI rating . That could be a route for you ..but I won’t get drawn into that debate here!!! At any rate it is still going to cost a lot of cash.
With regard to training over a long period of time….DON’T! It will cost you more in the long run. Those who try to do FIC’s and CPL courses part time in general take longer than the min hours, ..you need to go at it full time.
Sorry can’t be of more help, but if it was easy everyone would be doing it!