As said above, get an extra l-spring (or two), the starter punch will help greatly with the staked hammer pins. I did it with and without a starter punch and the starter punch will make easy quick work of them and a good tool to have anyways. Also, get the decocker slave pin for decockers to hold the sear cage together. (I accidently got two slave pins, but that actually came in really handy as sometimes you might over punch the slave pin and you don't want to drive it back due to possibly breaking the lifter spring, so the second slave pin can .be used to go in again to repeat the process quickly and safely.