I got the Hozan tool tool cheap, with extra bits, used it once so far to extend the threads on a steerer - was my first time, but I know how to use a diestock and had no problems If you've used a small one enough to know what you are doing it's no different, just more work.

And yes, a good die is worth what it costs. Cheap ones are cut then hardened and they can distort during the hardening process. Good ones are hardened and then ground.