Bertie the Bunyip wrote:
I know some guys who did just this, but they were all going right
through and getting all their ratings ( excluding multi) on the one
airplane. It worked out well for them and they figured they saved a
fortune.

That could work once they have their private pilot tickets. Insurance
companies do an antler dance when you mention *student pilot*
solos...insurance on a plane owned by a group of people hoping to get
their *private pilot* licenses in it would likely be very high *if* they
could find a company to do it.