I'm in Canada, so it is likely better for you to get them printed locally. When I'm done I'll upload the model files somewhere and post a link and you can get them printed. I should have it done in a few days.
I forgot to mention, there isn't just a round hole the size of the bolt in the top of the tube. It's a rectangular hole for each bolt, about 35mm by 43mm. So it looks weird. I'm in the process of designing and 3d printing a plug to go in the holes.
I removed the steps on the rear doors. I kept bashing in skins into them loading and unloading my dogs and stuff into the back seats. They are held on by 4 10mm bolts. I'm not sure about removing the tube itself.