The basics have been covered, so I will mention some small stuff that will be needed.
SAFETY GLASSES & HEARING PROTECTION!!!!!!!! a good set of leather gloves.
One thing that has not been mentioned, is a good set of mini picks. I have sets from Matco & Snap on. Handy as hell for o-rings & such. also, a good ratcheting screwdriver w/ an assortment of bits can be invaluable. A lot of people don't like speed wrenches, but they can be real handy if you don't have access to power tools, Craftsman would be fine for this, no need to pay snap on prices. Other things easily overlooked at first, magnet on a stick, mirror on a stick, screw starter, couple long solid(1/2" -3/4" diameter or so) pieces of steel round stock for when you need a punch to beat the living **** out of something. high quality set of files(flat, round, & triangular). Ratcheting wrenches & stubby wrenches are also very handy to have. Cordless LED droplight. good sharp drill bits.