I get 3 pieces of exhaust tubing 5 feet long and have the guy swage the ends of two pieces, one on each end so it can be taken down and stored. There is a 24X24 inch platform at 13 feet 6 inches, so that makes the seat height 18 inches from the platform. There are steps welded to the outside of the pole to climb up and over the platform to the seat. The seat needs to be small, not more than 10X10 inches because it's kinda in the way if it's bigger than that when you get up over the edge of the platform. I fashioned a cable to attach to the handle bar to keep the seat from rotating when I grab the handle bar to get up on the platform. Once on the seat, I disconnect the cable so the seat will rotate. I used 3/4 inch tubing for the platform frame and braces and expanded metal to stand on. There is a small hole in the expanded metal to pass the two sections of pole through for storage. I used 1/8 inch steel cable for the support cables and have swaged loops in each end so I can completely disconnect them from the platform and frame and store them in the bottom section. The bottom section has a 2X4 inch of 1/4 inch plate welded on the bottom to bolt on a 12X12 inch piece of 3/4 inch plywood for a "foot" on the bottom of the pole. The seat frame rotates on a 1/2 inch diameter stud that is welded to a 2 1/2 X 2 1/2 inch X 1/4 inch plate welded to the top of the pole. The seat can be removed by pulling a cotter pin to allow the seat to be lifted off the stud. The plywood seat frame is covered with a foam pad and the plywood seat frame is attached to the metal seat frame with a hinge to allow the seat to be tilted up to access the cotter pin for removal. You can use the corkscrew dog stake outs for anchors but make sure you get them in the ground all the way until just a small amount of the rod shows above the ground, there's really not that much force pulling on the stakeouts.
This is just a general description of the pole stand and parts can be changed for a bit different design but go with the 2 1/4 inch exhaust tubing. One great place I've had good luck in hunting with these is in a waterway in a cornfield that has small trees in it. The deer like to come out in the open in the evenings in the early season and travel the waterways There's your hot tip of the day!!!