Snacking Bear, in case you missed them, there are several R2R reports here:
Julius S:  
Grand Canyon Rim to RimSteve C: 
Grand Canyon Rim-to-Rim day hikeWhitney Fan: 
Grand Canyon Rim to Rim Day Hikesmithb:  
Another Grand Canyon North Rim to South RimI'll be interested to see yours.  Have fun, it is a beautiful place to hike!