Old goat, I ran across this in my research about the number of plies needed.
http://www.sheldonbrown.com/rinard/carbonqa.htm
I am planning a bamboo build(when the weather warms up). I am going to start with some lugs from an old Reflex MTB. It is a bonded aluminum frame. The lugs will be inserted into the bamboo then wrapped in the same fashion as other bamboo builds. I don't have pictures of my frame but is a link.
http://www.mombat.org/Reflex.htm
http://www.mombat.org/1990_Reflex_Limited.htm