It was a great trip - everything worked out very well. We didn't get the trip finalized until the last minute and that was a bit stressful. It all worked out in the end.
The trek through the Peruvian Mountains was amazing - so peaceful and beautiful.
I would spend more time in Cuzcu at the beginning of the trip and do the sacred valley earlier in the trip. That just didn't work with the trip that we had scheduled.