I've had an old Craftsman/Atlas lathe for 15 or so years now. It really isn't rigid enough to turn anything in steel or even a good surface finish in brass and the change gears were annoying. I looked into the quick change gearbox but those are $600+ on eBay and at the end of the day you still have a light duty lathe.
Noticed the other week that the local auction house had someone's old restoration of a South Bend 10L.
It sits on a 3 foot bed which honestly is probably fine for most of my work but it comes with a longer bed and lead screw as I imagine it was being converted as a some day project by the consigner.
Unfortunately for my pocketbook at least a couple other guys knew what they were looking at as well so I didn't get a smoking deal on it but it looks to be worth what I will have in it, especially if I can find a market for some of the spare parts.
I don't see much for turning tools (although they may be in there) but it seems pretty ready to go with a steady and follow rest, 3 jaw and 4 jaw chucks, at least one faceplate and a full set of 5C collets and drawbar.