Ol man and Wildman, 
     I am not sure exactly how much I need.  I am building a bow for my daughter that will be around 50" long and one for my wife that will be around 66" long.  Neither bow will be very heavy.  I will be making an endless loop string for each.  Would one of you guys be interested in some sinew for trade? 
I am trading Rileyconcrete for some fur silencers.