No, there is a bunch of stuff we do when we get it in to the warehouse to prep for the customer, truing, some assembly, and what not... I havent worked there yet, so I am not 100% sure on absolutely everything, I have a lot of files I have read through, but i haven't actually been there and done anything...
Well, since your bikes are made in Taiwan and shipped over, there's very little to really be done at the shop end. True, checking out the wheels for true is impt., but other than that, sticking in a stem into the headset/headtube and adjusting the handlebar, attaching the front wheel onto the bike, sliding in the seat/seatpost into the frame, making sure the hub shifts correctly....that's about all that's done.
But then, that'll all have to be undone, outside the wheel truing, to ship.....basically putting the bike back into its shipped configuration.
This is experience talking. After opening thousands upon thousands of bike boxes in the approx. decade I wrenched and sold bikes (incl. Cannondale, Trek, Giant, Schwinn, Klein, Lightspeed amongst others), the manufacturers attempt to have the bikes as close to fully assembled as they can. Road bikes and recumbents are the most unassembled out of the box.....your bikes will be the closest to fully assembled and shouldn't need much work at all to get on the road. Maybe 30 min. of work......if you're slow and only have an adjustable wrench to work with.
Oh, and I'm very, very surprised given the price of those bikes that you went with such an "antiquated" stem/headset combination. That headset, using a threaded fork tube, was put out to pasture well over a decade ago by the Aheadset style of headset. Almost no one uses the threaded fork/headset any longer, except in the most bottom end junk found on Murray, Huffy and other crap made by Pacific Bicycles....all found in Wal-Mart, K-Mart, and other low end big box retailers. Sad, really, their choice in that.