Kite Line

[spenuki]

It's been years, but we were contacted by a friend to do a kitemaking workshop at her church. Just the basic sled kite. I have the plastic bags, bamboo sticks and can get masking tape and hopefully can find surveyor's tape for tails. What I can't find is the light cotton kite string we used to use. Anyone know where we can order or who has the best deal on light weight polyester line? One place has prewound 18# x 100' for $.45 ea. We're going to need to have at least 60 sets on hand. Any help wil be much appreciated. 8)