PauletteJo
What a coincidence. This morning I was running with last year's women's winner of the Tahoe Rim 100. Maybe I'm talking to the 2010 winner now?
I'm sure you've thought of this, but here's a tip for you if you run the rim. Do everything you can to arrive at Tahoe at least 3 days early. You get most of your acclimatization to altitude in the first 72 hours. The Tahoe run isn't all that high, but it's high enough to have you puking on your Inov-8's if you don't get time sleeping at altitude.
My friend says she arrived 4 days before last years race and shocked everyone with the win, because she hadn't trained at altitude. We're "flatlanders" like you
(San Jose, Ca. vs your Phoenix
) and do most of our training below 2,500 feet. Of course, you won't be training at altitude, but it's important that you sleep there for several nights. Where you sleep is more important in acclimating than where you train, anyway. I know that it's costly, even if you are camping
(California state campground rates are outrageously expensive now, but check out the National Forest sites for dispersed camping
). But wearing yourself out with last minute travel and little sleeping time at altitude is a fools economy.
Sunday, about 20 miles into my run, a talented, young male ultrarunner caught up with me. Among other things, we discussed the Tahoe Rim 100. He also ran it last year and said my 41 year old friend blew past him at 70 miles looking strong. He'd arrived the day before the race and regretted that action.
That little bit of information and good luck is all I can offer. I'm sure you will do great at whatever you choose. I hope you can come up with a crew and pacer you can count on. If I were you, I'd look for someone who is totally responsible and meticulous to head your crew. It doesn't matter if they've ever run a step in their life. You can teach them what you need. You can't teach maturity, intelligence, calmness and dependability.