In case you haven't done so already, I've downloaded the MOT history, and attached it.
Doesn't look too bad to me, with almost standard parking brake issues.... A bit less bling and bit more maintenance might help ( failing MOT's on worn tyres is always a concern .... I'd be checking the claimed service history is 100% valid - these are champagne cars, and can not be run for cola money !)
The few '322's I know are starting to suffer with some corrosion now unless they have been looked after - and this should be mentioned on the "new" MOT - as it isn't it might be nice and clean .... but I'd want a bl@@dy good look ....
Both the gear boxes are the main concern, and not cheap to fix - do a search on here - it has been covered at some length......