I made it! It was quite a challenge. You can find my full ride report (with photos) here. Quick summary:

Day 1, Henderson to Laughlin: I made to mile 48 when the heat kicked my butt (110 degrees in Laughlin that day!)

Day 2, Kingman to Ash Fork: we got pulled over by the highway patrol, and had great fun on Route 66

Day 3, Ash Fork to Prescott: made it safely through the "most dangerous highway in Arizona"

Day 4, Prescott to Lake Pleasant: my first century!!

Day 5, Phoenix: a warm welcome by our colleagues.

All in all I had a blast.