I agree June is better, lets shoot for the 1st or 2nd week in June.
I think the days could work well in one week.
Saturday: Travel to Washita (closer for everyone than flat nasty)
Sunday: Wheel Washita
Monday: Wheel Washita
(or head to Flat Nasty if we want)
Tuesday: Break down camp. Head to Flat nasty (only a couple hours), set up camp...
Wed: Wheel Flat nasty
Thurs :Wheel Flat Nasty
Fri: Wheel flat nasty
Sat: Wheel a bit and maybe head back, Last year I liked breaking up the return travel into 2 days.
Sun: Travel Home
With such a relaxed week can take our time, sleep in, stay up late, night wheel

, or hit a movie again