My thoughts:
1) If this is to be used for your PPL, then invest in something to make the PPL easier to obtain. While doable, getting a PPL in a complex / high performance aircraft is not a way to do it quickly as you will be adding unneeded complexity to the task. I'd suggest buying a 172 or a Cherokee. Cheaper, simple to operate, will meet all requirements of getting you through the PPL and probably the Instrument Rating. Also, the reality is that as you learn you WILL make mistakes, you will make a few rough landings, etc. Things that are better done to a cheaper plane than an expensive one. You could learn to drive in a Ferrari, for example, but usually better to learn in a little Honda Civic. Not as glamorous, but more likely to lead to successfully getting a driver's license.
2) Also, you mentioned leasing it back to a flight school, or renting it out. If you're looking at a lease back, I am confident that you'll get more return from a simple aircraft than a more complex one. If you are thinking you'll rent it out as an individual, then I think you may want to do some more research on what is required to do this, both from an insurance and a maintenance point of view.
Anyway, good luck, let us know how you decide to proceed.