Neat looking tool, looks like it should be good for setting the endless rivet in the new chain as well. I've got one, but it's much more heavy duty and a pain to carry in trail kit. How much was that one and where did you get it?

Oh, my tip for all of this, don't over press the new link when you set it, I've done it a few time and it means that link doesn't move as freely... I'm not sure what the trick is for avoiding it though.