DITTO! Welcome to the Cherokee fold, Toby!
We have a field neighbor who financed a ground-up restore of a Cherokee 140 that was abandoned on the field. It had bird nests in the wings. He has gotten it up to an 8500 feet for cruise at 120 knots at 8GPH (as I recall). He has flown as far as the tip of Florida. It's a great plane when you only need to fill 1 to 3 seats.
There is a Cherokee email list and Cherokee Owners club (actually magazine / web site) as resources as you look for information.
What I say is about the only reason to own is so you can have the keys in your pocket (or purse). You'll know the plane is always there waiting for YOU to put in the keys. You'll find out how cool that is now.
It's gonna take a long time for the grin to go away! On most days mine hasn't stopped yet.