IMO that's no "minor" substitution. There's a world of difference between a pair of tweezers and fishing hooks, swivel, sinker, safety pins and a heavy duty needle. I ordered one of Doug's kits a long time ago from the link on the ETS website. It came exactly as described. I actually still use many of its original contents (fishing hooks, sinker and needle to name a few) in my current home-made PSK.