Possible?

Hi,

I have wanted to get my pilot's license for most of my life. My
father was a pilot in WWII and Korea and owned airplanes up to the
time I was small. I am now in a position to start on my goal and I
need to ask a few questions answered. I fear I am searching for the
"Holy Grail", but can a person purchase a trainer (Cessna152 or maybe
a Piper 140), low engine time and in good shape, and hope to negotiate
a lease-back deal with a flight school in order to minimize the out-of
pocket expense of building time? I'm not looking at making a living
off of rental, just offsetting my fixed costs and pay for my gas. My
son and niece, both in college, also want to learn to fly, so I
figured we could all use the "family" plane. I have put together some
numbers based on information gleaned from the internet and it looks
possible. But again, I don't want to spend my time tying to invent a
perpetual motion machine when it doesn't exist. Any thoughts would be
appreciated.

Thanks