Just for a point of reference, here's one not too far from you for comparison... The asking price isn't a heck of a lot more than the one you posted. The cost of tooling will add up quickly and will easily cost you more in the end than the base machine itself. So, included tooling, like shown in this ad, is worth a lot! Looks like this one might even have chromed ways!
https://cleveland.craigslist.org/tls/d/pittsburgh-bridgeport-mill/6748459532.html
Ted
I contacted the gentleman for this post the day after he listed it, I was ready with cash in hand haha. Unfortunately he sold it the day he listed it and he can't figure out how to go in and delete the listing. I was really bummed.