Picky,
You will be amazed how many group owned aircraft only fly about 200 or so hours a year.
So availability is never a problem , also if you want the aircraft for a 2 or 3 day or a week for that matter you are able to without any whinging !
There is 10 in our group & a share going ! although it is about £5000 ish.
I think Squadgy had a share going in his C152 that seemed good value and a well run group .
The daft thing is i wanted a 4 seater ! so paid more but looking back a 2 seater would have been fine as I can count on one hand the amount of times i have gone with more than 2 POB.
£1500 should get you a decent share , I also think there is a share in a Robin hangered behind the Clubhouse , Louis Blanchet one of the instructors has a share in it , so im sure he will advise you.
Good luck .
EL
PM me if you want any more info.