Well, a big thank you to everyone who helped me with this puzzle. I tried to drill the pins so that I could insert a small screw and pull on the screw, but the steel that those pins are made of just laughed at my new cobalt drill bit. So I ended up using the dremel and hacking away (half dentistry, half butchery) until I had enough exposed that I could grab onto. When I started the project, I was looking for a pin to depress, so - you guessed it - I depressed the *!@# of of those suckers, first with a pick then with a small punch and hammer, making the task of removing them more challenging since they were now quite recessed. After the pins were removed, with the key in KPII, a few taps outward on a chisel that was catching the shoulder of the cylinder and the thing popped out and hit me in the chin!