I got a fairly inexpensive chain breaker from MFG Supply
http://www.mfgsupply.com/m/c/32--1733.html
its only 11.95! that is almost 3 times cheaper that grainger, and 10 bucks cheaper than mcmaster
I got master links from MSC (the company that provides the master links in the kit)
If you need an exact product number, PM me and Ill be able to dig for it
they ship really fast too!