Was planning on that route from Moran to Rawlings last July, left Moran on 26 but shortly after departure ran into a fatality accident that had the Hwy closed for a considerable time. Had to do a180 and rerouted back to Hwy 191 South through Jackson To Rock Springs. With wait at accident and rerouted it added about 3 hours to the trip.
I see see no problems with your choice, wish I could have had the chance to finish it myself.
safe travels