Any build instructions for vertical Technic/Lego conveyor belts?
You're in luck! Jason at JK BrickWorks has put his instructions online. There are others I've used; I'll hunt for those links, too. He's made multiple Ideas sets, so this might be how Lego officially makes a marble run set, which would be fantastic.
Here we go: I've built Brian Alano's wheel lift and Bryan Bonahoom's stackable lift and enjoyed great success with both.
On EuroBricks, there has been a lot of work posted on recreating Akiyuki's modules.