Well, I think I have figured out what I'm going to do with the Pull-Pal, but not enough time to fab things before the next trip.  Will probably carry the beam sideways on the outside rear of the roof rack, so that I can stand on the tailgate to deploy it.  The spade looks like I can carry it on top of my stack of MaxTrax that are already on the rack.  Width of the RW1400 spade is a little greater than the width of the Maxtrax, so it will nest nicely on top of the stack and be padlocked onto a couple of studs.
My temporary solution for the upcoming trip is an electronic keyboard case by Gator that I found on Amazon.  The case is their 76-Note Slim (GKB-76SLIM).  Width is perfect for the RW14000 spade, and length is a little more than I need, but it will work.  Case holds the complete Pull-Pal and has enough room for stuff like a cable damper, gloves, recovery straps etc.  It has internal velcro straps that cinch everything down, and I will strap it to the top of my cross-bed tool box in the bed of the truck.  Not a permanent solution because I often need that space for other gear, but it works for this trip.  Bonus is that the case is near perfect for a stack of MaxTrax and a couple of recovery 


straps, so will eventually go into the other truck.