Hey Chris, I don't know much about the (Crocodile Hunter accent: ON) beautiful industrial trollies (Crocodile Hunter accent: OFF), except their weight rating and who made them. BTW: The 2nd one is a Baldwin, made for Ford. I think the second one would be an easy kit bash from a Gandydancer. You may need to extend the deck a few scale feet, but then all is need is any easy box cab and railing. Can you get the pantagraph somewhere? A functional one? I think yes it's a 3 pole on that first shot.
This one is also a Baldwin, 13 ton, (Crocodile Hunter accent: ON) ain't she a beaut!(Crocodile Hunter accent: OFF)