Switch things around a bit
Where are you planning on going after the Grand Canyon. I don't understand the scope of your entire trip. If, for example, after your trip you're planning on going to Las Vegas, it really makes far more sense to go to the Grand Canyon first and then go up through Page and the Lake Powell area to Bryce and Zion. Then onto Vegas.
So, really, you could do Farmington to Grand Canyon. Then go to Page/Lake Powell. Then Bryce, Zion, Vegas. Does that make sense?
But it's hard to give you the best advice for this without knowing what's next on your itinerary and how much time you have for this.
That's what we're here for!
Ask more questions as you have them and come back here when you return home to let us know how your trip went, OK? Happy Travels!
Glad you had a great time, Mr. Hind!
We do have incredible scenery here so it does make the driving fun, doesn't it?
If you have time, we would love to hear more details about your trip sometime. Pictures are always good, too (hint! hint!). :)