Have you got a toolbox that goes across the bed of your pickup?
I've often just backed my pickup into a likely spot, and just sat on the toolbox, facing rearward (to the front of the truck).
Cheap (FREE!) and portable, so to speak. It won't get as high as some of the pics shown, but where I hunt, I don't need to get much higher.
That would be a violation of state law in Michigan...hunting from a vehicle.
