Troy,
Power windows can be installed with some work, but you will have to keep the vent window in order to use them.
There is a guy that has a '62 that has them, and he loves them. He mounted the switches under the dash.
Me I would use the switch that uses the window crank handles, and uses the existing hole. I have only seen the 1 piece window kits for the '64-66 trucks only.
I've been trying to figure out how to run 1 piece windows on a wrap around '60-'63 cabs without chopping the top, due to the "A" pillar's angle.
I've came up with some import rear windows that will "twist" the glass inthe door as it goes down missing the "A" pillar all together. But a tri-5 chevy rear window regulator should work, it works the same.
David