
Six years later, finally got this done. Better late than never. Basically, I gave up on this for a few years, then in the last two years I A) found a pole and B) asked a buddy who welds to help me build it. He went MIA, and I lost the pole I gave him.
No pole jams for sale online, either. I scoured the internet but nothing was available in my area. And I think I mentioned it before, but there are no natty poles in my city that are even slightly doable. They're basically all impossible.
So recently I decided to get this shit done myself. I drew up the blueprints myself (can DM a pic to anyone if interested), did all the measurements to figure out what would be fun and accessible, and took the prints to a custom metal workshop.
The dude at the workshop was actually really cool. He knew a bit about skating and suggested that the metal to use would be mild steel, which would be optimal for grinding and not as much money as stainless steel. They got the pole jam done quickly and it was at a good price as well. They made it heavy too, so it doesn't move around easily.
All in all, I'm hyped. I tried skating it for the first time today and started to figure it out. Looking forward to getting it dialed and using it in a line I'd like to film.