Also worth while planning the exams around knowledge you'll need at the time. I did AGK first and is probably best done first, as it's practical knowledge. As is CNAV.
The order I'd recommend is
CAGK
CNAV
CFPA
CADA
CMET
CLWA
CHUF
That way, you've left the easy ones to last, letting you start your ATPL's with the easiest first, while they're still in your head. Also allows you to go out hour building, with some practical knowledge such as AGK, NAV and FPA up your sleeve.