Check your zoning, if you are going to work on others guns get a license. As far as a mill, there are a lot of good used mills available, don't buy a beat up Bridgeport just to have a Bridgeport. Lathes, check the hole through the spindle so that you can get a barrel through it. If not then get one with enough bed length to chamber on. You will want a 3 jaw, 4 jaw and a collett chuck is really handy, actually you may want a collett chuck before a 3 jaw, just buy standard stock diameters and you are fine. Save your bandsaw money and spend it on something more useful, like a couple of extra hacksaw blades. Don't waste your money buying Machinerys Handbook or any of the vintage gunsmithing books, they are useless to you. See if your Community College has any machinist courses. I went to gunsmithing school 26 years ago and in the past I was a metalsmith in the ACGG, I am currently fulfilling my year associate member requirements before rejoining the guild, if they will have me back. I normally only lurk on these sites, however I'm willing to share what works for me if you're interested.