I can tell you a little story here. Around 48 years I fell in love with racing. There were machine shops on every corner. Heck Napa 75 feet from my house did machine work and I’m not taking just cutting rotors. 15 years ago the shop that sponsored me closed. 1.5 years ago the machine shop I’ve used since then shut down after Johnny retired. Crank work only now by an old retired guy that comes in twice a week. This is the main reason I bought my valve seat machine at 65 years old. Honestly I’ll never pay for it with the work I do but I love it. If you are young and love this stuff slowly buy what you can and do what you can. It’s not going to get any better trust me.