Depends on the tool you already have and the exterior help you can have. For exemple, for my 1st 8 strings, I already go cisels, plane, rasps, driller, and many common tools like that. I still needed to buy a rooter with good bits (a friend sold me he's old with bits for less than 50$), good sand paper, and the furnitures for the guitar. I've been helped buy a profession carpenter that gave me some wood, and help me resaw, plane, and prepare every wood. Still, with this, I got for almost 1400/1500 for that guitar. And it's without counting the time on it. So don't go for money to build your own, but for the originality, and the pride.