Not an expert by any stretch of the imagination, but here are the tools I've used the most on the 2 pre-carves I've attempted (first attempt messed up the butt plate inlet). Set of butt chisels, Ramelson brand dogleg chisels (all three, straight, left & right skew) 9mm gouge, quality wood rasp, sharp spoke shave, exacto type knives. The obvious various and assorted drill bits, taps, files and needle files, hack saw etc. I'm sure I'll remember more as soon as I post this, but these will get you started, and you can add as time, funds and need permits.