shocks, he's probably aiming for part time course. quoting myself, ehm,
Kingston do 'Year 0' for folks who don't have A-levels/access course/etc, which also gets you A licence. You probably can't do that either. Then, you probably still wouldn't have 'half decent wage'.
If I were around KU campus/local college doing Year Zero, with A lic theory, it'd make more sense than access course I finished couple months ago. Well..
The thing with initial aircraft eng courses is that one kinda has to learn in workshop/hangar, right? What's the point reading up tons of stuff without relating it to practical experience? Maybe for top-ups, MSc/MEng..
Still, I believe something 'tailored' to your situation could be achieved taken module by module, but eventually you have to take the jump, GK2.
Check out some of the threads about the hassle of Engineers in Forces taking the leap to civvy sector. They tend to do part-66 theory beforehand so that with their experience (current salary, too) they aren't on 'fitters' wages'.