I use the Nicolas Cage gone in 60 seconds approach. I show up armed with a 9/16" socket and ratchet, T handled allen wrench and a 2' length of 2x4. I slide the head stock all the way to the left and position the carriage assembely about half way between the head stock and the right hand end. I slide the table into the carriage and crank it down onto the 2 x 4 raising the way tubes high enough to slide the head stock off. Using the Allen wrench I then remove the tie bar, slide off the headstock wrap it in a quilt and into my truck it goes. I then fold the table into drill press mode,center the carriage and tighten it down again. I raise the tubes into drill press mode and remove the table and the 2 screws that hold the way tubes into the base arm. The carriage makes a great handle and keeps the tubes together as I remove them from the machine and slide them into the truck. I then flip the base over and with the 9/16 socket I loosen the bolts in the tube lock bars and slide the ends off of the bench tubes. All this while I load every thing to one side of the truck leaving room for all the tables and misc accessories.
The seller is usually dumbfounded and bedazzled as I drive off.
That is pretty much how I handled them except I always had a rubber mallet and spray lube along because I was buying some that were a little rusty. I was also hauling most of mine in a Lincoln Town Car.
One guy was going to call some friends to help carry one out of his basement and up a steep narrow outside path. I told him to not bother. He was absolutely flabbergasted when I carried my little handful of tools down to the basement and started knocking it down. By the time the few minutes had passed that it took me to get it apart my wife had already carried most of it up to the car.
I grabbed the headstock and he brought up the table still looking dazed.
Many said that they had wondered when I drove up in a car if I was nuts.
I did not equip with Shopsmiths in spite of the setups but because of them.
1 1988 - Mark V 510 (bought new), 4 Poly vee 1 1/8th HP Mark V's, Mark VII, 1 Mark V Mini, 1 Frankensmith, 1 10-ER, 1 Mark V Push-me-Pull-me Drillpress, SS bandsaw, belt sander, jointer, jigsaw, shaper attach, mortising attach, TS-3650 Rigid tablesaw, RAS, 6" long bed jointer, Foley/Belsaw Planer/molder/ripsaw, 1" sander, oscillating spindle/belt sander, Scroll saw, Woodmizer sawmill