I havent read the entire thread as I can't be bothered
But I hate Cessna's too....they are like sitting in a gold fish bowl and the high wing has been a killer more than once.
Anyway......You know what I'd do if I were you? I'd go to the USA and convert to an FAA PPL. The FAA will recognise your glider hours towards the PPL hours, and you could in theory get an FAA PPL in about 10 hours (you require 10 hrs in a SEP aeroplane). Once you have that, you can fly G or N reg in the UK or if you wanted, you could convert to JAA / EASA or whatever.....
That is what I'd do anyway...