Currymonster
Why don't you consider becoming a Microlight instructor on the new generation of 3 axis - bascially ultralight aircraft? They are in many respects more fun to fly than the conventional and dated C150's and if you look where private/recreational flying is going it is the the growth market and the conventional PPL is dying off, it seems to me.
BTW you only need a PPL and 200 hours and it doesn't have to be exclusively on microlights. Oh and the other plus is you could just about make a living as a ML instructor where pay varies between £30 to £60/hour.
Do a seach on the forum and you will see this has been covered in some detail.
Certainly worth condsidering IMHO.