I have a 16 inch south bend, 1959. It runs great, but the ways are worn out. I paid about $1200 for it and got tons of accessories with it. It's really too big for minibike and gocart work but you can still manage that if you're determined. I made something 5/16" diameter on it this weekend. I would still like to have another, benchtop lathe.
Buying an old lathe is sort of a hobby in itself. You need to get hooked into surplus auctions online, bid on a bunch of lathes, and be prepared to go get them. Then you'll need to convert it from 3 phase. They tend to get surplused out of factories closing down and trade schools. There are also guys that like to buy and sell them. there are a lot of old guys in your neighborhood that have a 9" south bend, so you will find a lot of those in estates. They used to put the 9" south bend in the Sears Christmas catalog.
My brother just bought a $12,000 Arboga drill press for $150. It was surplused out of a trade school in Georgia, and basically was new. Happy hunting.
---------- Post added at 07:59 AM ---------- Previous post was at 07:57 AM ----------
Lathes are like air compressors, what ever the biggest one you can get, it WILL NOT be big enough.
Mine's big enough.