Draw a straight line from KIOW to T82 and it crosses right over the
Lake Texoma area, so Durant would be much closer stop. Ponca City
would be further off the path.

I'd still opt for Cedar Mills (3T0) on the Texas side myself, just for
the scenery and experience of the approach to and takeoff from the
lake-end of the runway. Cheap fuel (plus a courtesy car and good BBQ)
is also available at Gainesville, TX (KGLE) just a few miles west of
the lake, and also cheap fuel at Sherman (KSWI) just a few miles
southeast of the lake.