Great setup with the garage lift! I was definitely thinking about some bolts like that to slide into the channels on the pioneer platform. Thanks for the info!You are in luck I actually removed mine today and took a couple of pictures!
So I initially used the hardware that came with the smittybilt tent and it was a PITA. So my dad helped me make new mounting hardware. I bought some inch square tubing to start with to be what the tent attaches to. Shown in the photos below. To attach the tent to the square tubing we used rivnuts in the square tubing. So we drilled new holes in the tent and put a bolt through the tent to screw into the rivnuts in the tubing. We used rivnuts in the tubing so the bottom of the tubing would be flat on the bottom so it would lay flat on the rack and it wouldn’t scratch the top of my rack. To attach the tubing/tent to the rack my dad welded a piece of flat bar to a bolt (like a t bolt) that slides in the slots in the rack (I forgot to take a picture or what we made but I included an example t bolt for reference). But I attached pictures of how we drilled holes on the ends of the tubing to be able to run the bolt through to secure it to the rack. Hopefully that makes sense and helps haha. Let me know if you have any questions!