If it flies, floats or f**ks ........... rent it!
Owning an aircraft is great until the little pink chits come out from the CAA with the 'change the oil seals in the gearbox before the next flight' words on them for example.
A friend of mine has a 1/6th share in an aircraft. He is a fully licensed aircraft engineer and his quote is:
When the aircraft is serviceable I own 1/6 of it, when it's broken or in maintenance, I own 100% of it
It could be cheap but it is, like many other things in flying, a gamble. Pay per hour and, if the school folds or the aircraft breaks, you can walk away. The current climate is not good for aircraft sales.
Just a thought.....