It's like anything else. Welding, drilling and tapping and on and on. My attitude has always been if you are going to own an old vehicle, you need to learn to work on them yourself. It's not like it's a big mystery. The ones that get me are those who cry about having to buy a special tool, use it once and then sell it. Or rent it. If you have plans to keep the vehicle, then keep the tools. I have well over forty years of tools accumulated in seven boxes and in various blow molded cases. Maybe overkill for a do it yourselfer. I did do mechanic work for a living, after all, but nonetheless, I don't get rid of tools. I bet cavemen didn't sell their flintrocks.