i dont believe i use a single punch other than to trap the mainspring and maneuver the internal springs around their stays. any old punch thats small enough should do. all the parts are pretty much held in by screws. couple of pins holding the hammer trigger sear in place your going to have a more difficult time getting em to stay than drifting them out...
ive got apair of new vaquero and do all my own internal mods. i know the guns pretty well. be sure your using hollow ground screw driver bits that fit the screw head EXACTLY or your going to bugger em up.
"Gun control: The theory that a woman found dead in an alley, raped and strangled with her panty hose, is somehow morally superior to a woman explaining to police how her attacker got that fatal bullet wound." — L. Neil Smith
The problem with being stupid is you cannot simply decide to stop doing dumb things...
"I crapped my pants to avoid the draft!!" -Ted Nugent