I work in a receiving office and deal with a lot of truck lines. Try this web site, www.track-trace.com. It lists just about every common carrier there is. Those "round trip totes" are ideal. And you can lock them with a cable tie. Get a few of them shrinkwrapped on a pallet and ship common carrier. I think you will save $$'s over say, FedEX or UPS, because of the size and weight. Then you can pick them up at the freight terminal when you get there.
I hope this helps.