There's no one tool kit because of different approaches. Most would want a drill press, which you probably have. You will need files, needle files, and abrasives for finishing metal, a hacksaw and 3-corner file for dovetails. 6 chisels are needed ata minimum. Straight chisels at <1/8" wide (trigger bar, underlugs, and thimble tabs), 1/4" wide and 1/2" wide, and 2 gouges, one that fits the radius of the sear spring bend and another that fits the radius of the front of the lock nose. After that, some use drawknives (unlikely in a precarve), planes, spokeshaves, etc whereas others prefer gouges and rasps for heavy work. A set of cabinet scrapers will help and you'll need some half-round files or rasps for shaping.