huli: Kings Gunworks can sell you a drop in beavertail grip safety that requires no gunsmithing. I have installed a couple in my different 1911s and it is as easy as switching parts. For the trigger, etc., get yourself a Chip McCormick hammer and trigger group (adj trigger, hammer to fit the beavertail grip safety, and a sear and disconnector. If you install these you will very effectively upgrade your pistol. Both Kings and Chip McCormick have websites under these names. HTH. Mikey.