If you want to know the cost of owning, check out the cost of renting.
Owning is seldom less expensive than renting, so consider the rent
figure to be a floor. The more hours you fly a plane the less per hour
it costs. Maintenace is hard to predict.

If you are just starting out, you are way better off to rent than own.
It is complicated enough to rent and learn without having to deal with
all the hassles of ownership too.