You are going to be very hard-pressed to find a school (anywhere really) that will be willing to rent a multi that is not Dual only. Insurance is prohibitive for the rental as solo. Case in point, the school I work for is Dual only on our Aztec. In fact the only way to get to fly it solo is if you are a current instructor whom is an MEI with our school.

Not saying you won't find a place in Az, just going to be very tough.