I have 5/5-5/7 (3 days), 7/1-7/4 (4 days), and 7/14-16 (3 days) to do some extended prerunning.
The 4th of July is on a Tuesday, so if you grab that Monday before, we can get a lot of prerunning done on what equates to a mini AZ run by itself.
Brent and I talked about 4 peaks being the night zero camp, and a run up the rim towards Young as the day 1 route. From there it's wide open to possibilities. We'll put a gameplan together. No real need to prerun that first trail. Instead, on that first prerun we could just get up by Young on a Thurs night and spend the next 2 days exploring during that first weekend of May.
Our obvious goal is to stay off pavement as much as possible.