Cos,
Sounds like a good plan if you're that close to finishing the course.
I've flown into Headcorn a couple of times. Very aerobatic-friendly airport and the people I met at the Tigerclub were superb and very welcoming. I'd highy recommend spending a bit of time there and getting to know them and see if you fit in.
Good luck and if you're ever at Popham, come looking for The Magnolia Pitts and I'll buy you a cup of coffee.
Good luck!
Pitts2112