Elizabeth, you've just made things much more difficult.
I had my mind set on visiting the Clark Range, but after googling pictures of the lakes and high country you mentioned, I'm wavering. I just ordered the Mammoth High Country and Ansel Adams maps, plus Trekking California from Amazon. (My NatGeo map of Yosemite covers a bit of the Ansel Adams Wilderness, but not all the way to Mammoth) I'd pretty much settled on eliminating both the Grand Canyon and Ten Lakes. The point you made about the Grand Canyon is a good one.
I just applied for and received my permit for 6 days, entering at Lyell Canyon and exiting at Glen Aulin, but so long as I've got my permit, I can change plans up to, well, on the fly when I'm there.
After reading Bob's post and consulting my map, I'd settled on something along the lines of Bob's trip:
Day 1: Lyell to Vogelsang Lake - 13 miles
Day 2: Vogelsang to Anne or Rutherford Lake, below Fernandez Pass ~23 miles
Day 3: Anne or Rutherford Lake to Triple Peak Meadows ~22 miles
Day 4: Triple Peak Meadows to Upper Pines Campground ~24 miles
Day 5: Upper Pines Campground to Glen Aulin via Tenaya Lake ~21 miles.(Technically, according to the ranger I spoke with today, once I 'exit' the wilderness, I need a new permit to reenter at another TH, but walk-ups for Snow Creek shouldn't be hard to come by, and I've never seen a ranger standing check permits at TH's, and once I'm back in the wilderness, how do they now where I've come from?)
Day 6: Glen Aulin to Car ~ 7 miles, leaving me time to round trip into the Grand Canyon for 6-7 miles.
The potential iffy weather has me leery of getting caught between two 10,000'+ passes, though, so I have a weather dependent variation on the above that involves hiking to Triple Peak Meadows with a side trip to Post Peak Pass (~22 miles), then over Red's Pass, up to Merced pass before heading back down to one of the Merced Lakes (~15 miles) and from there to the Valley (~17 miles). If the weather was supposed to be bad but held out, I might try to make it to Anne or Rutherford and then hike to the valley from there (~24 miles). This allows me to bail out via the Merced River to the Vally if snow comes early and buries the passes. (An issue I had on my first week of October TRT thru hike attempt last year).
In the Ritter Range option, I'm looking at:
Day 1: Lyell to Marie Lakes ~18.4 mile (some of the pictures made me drool on my desk at work)
Day 2: Marie Lakes to Waugh Lake, Agnew Lake, Agnew Pass, Garnet Lake to Thousand Island Lake where I spend the night. ~ 14 miles so plenty of time to dawdle and enjoy.
Day 3: Thousand Island Lake to Vogelsang Lake ~ 22 miles.
Day 4 Vogelsang back to the car to resupply(I only have a Bearvault 400, so I have room for only 4 days max of food, and don't want to spend to rent the a Bearikade or the odious Garcia. If I laid out $80 for the larger Bearvault, or for half that rented a Bearikade, I could pack 5 nights of food and not have to detour back to the car or stop in the Valley.) and on to Sunrise Lakes or HSC, or perhaps stop short at Cathedral Lakes. ~18 mile.
I've stayed at Sunrise HSC before, and I'm again technically violating the rules by 'exiting' the wilderness to go to the car and then reentering.
Day 5: Sunrise to Glen Aulin ~13 miles. Again technically leaving and reentering the wilderness.
Day 6: Same as day six above, 7 miles back to the car with plenty of time to explore the Grand Canyon.
The same weather situation applies as above, i.e., getting caught on the wrong side of a high pass if there's an early snow storm. I'd never even thought about getting stranded car-wise if it snowed super-early. As far as hitch-hiking, even if it's 'easy', I just can't bring myself to rely on chance when it come to getting back to my rental and to the airport for my flight.
Decisions, decisions. I just have to pick on route for this time and save the other for the next.