>>13606509 (lb)
Set up the positioning of Q posts for an 11 x 17 format, if you don't want bleed through since your printing on both sides, rather than use 20# offset (copy paper 2 reams = 1000 sheets), you can use a 60# or 70# offset sheet (book weight).
By your own 11 x 17 sheets, go to your local Fed-X, which used to be Kinko's, then make your copies. They should have a cutter there, cut them in half and there you have 8.5 x 11 sheets, printed on both sides w/minimal cost.