Becky, I've just sent you a reply to your email regarding this route, and in it I agree with your route BUT only in reverse. The plan at this time is to leave that saturday morning at about 8am from Prescott and head to Williams AZ, where we'll all meet up with Funkletrumpet and his girfriend, and then head north on AZ-64 for the Canyon at about 9am from there. The way I figure this route and allowing for a couple hours to mill around the Canyon and at your friend's museum, and also allowing for the occassional gas and stretch(and smoke) stops, and also a short stop in Sedona and Jerome, we should all be back in Prescott at dusk, about 7pm...a total elasped time of about 11 hours.
Yep! Just like a good Single Malt Scotch, you might call me "an acquired taste" TOO.(among the many OTHER things you may care to call me, of course)