You could just go South of Shawnee to hiway 39 and then head West.
But if you don't mind the interstate I would go south To I-40 and go West to I-240 still westbound to I-35 and then go South to the Purcell exit.
Or just go South on 177 to hiway 51 there in Stillwater and head west to I-35 then S to the exit
But if you don't mind the interstate I would go south To I-40 and go West to I-240 still westbound to I-35 and then go South to the Purcell exit.
Or just go South on 177 to hiway 51 there in Stillwater and head west to I-35 then S to the exit