Thanks for replying everyone.
I come from a GA engineering background and converted to a pilot so I've got a fair idea what I'm getting myself into. I'm not licenced however I have a few good mates who are. I'll probably end up doing the periodic inspections and maintenance myself under the strict supervision of a LAME - I'm a qualified GA AME, albeit the last time I put a spanner on an aeroplane was about 20 years ago.