A 5% share means there will be 20 pilots, which is way too many.
Leasing a plane back to a school means you can more or less forget it. It's going to get smashed.
I tried leasing back to a school which was going to be doing IR training, but like so many in this business they were just bu11sh1tting. One problem did surface though: the school may say they will always fly it dual (which seems OK because there is always an instructor on board) but that narrows the market drastically because many pilots will want to self fly hire also...
An SR22 is a serious IFR machine, and one has to go for serious pilots. One can fly it VFR, and one usually does especially around the UK (where anything goes in Class G and a short airways flight is too much hassle), but one cannot be sitting in there with a compass and a stopwatch counting the villages and lakes at 150kt. Only a masochist wants to do that, and they will get lost or kill themselves if they ever get into poor vis (like today, 1-2nm in places) or IMC.