I worked in a large hospital that had a shop to making devices for the handicapped patients. They had a 13" South Bend lathe that was taking up space and they wanted it gone. I obilged and filled the back of a 1969 Vista Cruiser wagon with 1000 lbs + and skated up I-75 with the front wheels skimming the concrete. I still have it and have added lots of tooling a some new chucks. I do repair work only, no fancy stuff. I would like to thread the ends of some barrels someday, however.
The other lathe was also a gift, a nice clean 9" South Bend with lots of tooling, collets and chucks. The wiring was removed so I needed a motor shop to wire up the reversing switch. I added quick change tool holders to both lathes and I love them.
I was searching Craig's List for a sheet metal bender and came across an 8 ft Roper Whitney from a school shop at $1200 if I recall. Like new, and worth around $4500 if new. I had a 30" finger brake that real handy for small projects.
My MIG welder has come in so handy for making attachments for my tractors, a diamond plate truck bed for my son's C10 GMC and for the 14 ft tandem axle trailer we built this summer. I made a few mobile bases for my two favorite table saws I've posted here. A woodworker that can weld, can save a few bucks now and then.
A big 20" Jet drill press has enough low end to drill any holes I need. A also ran into a deal on a Grizzly milling machine a G0704 for $550 and a case of beer from a neighbor down the road. Some nice tooling came with that also.
I used most all those machines on this project including replacing a rusted out cab mount:
The craziest thing I ever built was a rear engine, rear drive shortened frame Ford pickup. It went through several body and engine configurations, ending up as a set back engine which worked the best. The rear drive wanted to do wheelies in sharp corners under acceleration, so that didn't go well .....