Hi,
I'd take the Yellow Head highway for that route. It is a good condition 2 lane highway. If you enjoy going to a spa there is a lovely one near Watrous (Manitou Beach). It adds a scant 75 kilometers to the trip. There is a regional full service campground there. Yorkton still has an annual film festival. I'm not sure of the dates.
Regards, Don
My ride is a 28 foot Class C, 256 watts solar, 556 amp-hours of Telcom jars, 3000 watt Magnum hybrid inverter, Sola Basic Autoformer, Microair Easy Start.