I agree with everyone else...it's an interesting thing to learn but you'll definitely pay for it in time and in cash.
As BSA said I'd pick up the gauges early on: concentricity gauge and LNL OAL gauge or something like it. You don't "need" either one but it'll save time and money in the long run. You'll have a decent sense of how much you're jumping the bullet and if your practices are resulting in straight ammo (they usually won't at first). Also pick a way to measure shoulder setback, whether it's with empty pistol cases or a gauge set.
