This coming week I will be tied up. The next available time would be a week from this Sunday 4/17. We have a group of guys that play doubles and singles early Sunday (7 or 7:30 am start time) morning. This Sunday we are already set, but I can tell the guy who sets it up that you want to play next week if you are interested. If not, no problem.
In the mean time head google Scottsdale Ranch park . Head on down an check it out. They have a list of people looking to hit from 3.5-4.5. That is probably the closest public tennis facility if you are in N. Scottsdale (18 courts!)