Well, it's booked (see details in Itineraries Forum). The whole million for $1575 + 15K miles, starting and ending in Miami. All of the segments qualify (most are Y, with a Q, V, K and M thrown in for good measure. All met Flying Dutchman's criteria and have been approved by airlines.
I'm still looking for others to meet up with since I'm flying alone. Please e-mail me if you will be on same flights, or in same cities.
BTW, thanks everybody for all of the great information. I can't wait to hit Machu Picchu, Cuzco and Quito.