Very last thing I would do is rent a plane back to a school. It's just going to get wrecked, so the people that do that are usually those that don't mind a plane being wrecked, which is fine if you don't want something nice to fly yourself. Also a large proportion of flying schools are run by people who are, at best, somewhat economical with integrity, and one has to hang around the place for a few years to suss out who you can trust.
The best way to spread costs while keeping control and reasonable access (flying weekends/holidays etc) is to put together an informal group, by purchasing a good quality plane and then renting it out, at a very competitive rate, to carefully selected pilots.
That has the disadvantage of requiring a Transport CofA (if G-reg) but if set up correctly (limited company) it can operate as a real business which means you can get the proper capital allowances and VAT rebates. See a competent accountant.