Morgo - The Cabair distance learning programme may fit your circumstances best - the way they do it is to break it down into 4 modules comprising of studying for a block 4 exams at a time.
You then spend a week at Cabair doing a brushup course before sitting the exam's you have studied for.
PM me if you want more details as this the course i did as i was in a similar position and managed to pass all with exception of 2 exams at the first attempt.
brgds
W.G