Research Question and hello

I know very little about small planes, and I am trying to gather
information for a piece of fiction. I need a plausible aircraft that
seats six for a character. Not the most expensive luxury thing in the
world, but something moderate and in good condition. What kind of plane
would fit these requirements?

He has a large piece of rural land. It would be great if he can keep the
aircraft there and have a landing strip. What would this involve in the
way of equipment, other people, etc? How big would it have to be?

Flying into Dallas, Texas, where would such a plane land? I assume not
DFW at all. Does Love Field have facilities for this kind of plane or
would it be one of the even smaller airports like Addison? Would someone
who flies into Dallas often have hangar space rented at an airport?

What would be the flight time from the Amarillo area to Dallas and vice
versa?

What would be the investment, time and money, for someone to get this kind
of pilot's license without learning to fly in the military?

And for the plot, I'm thinking about this man telling his wife he went to
town A when he actually flew to town B. Would there be any records to
trace his movements later on? Either that the wife could find out about
herself or that the police could find while investigating a crime.

I hate it when novels get these kinds of details wrong, would appreciate
some advice so I don't make that kind of mistake.

Thanks,

Louann Miller