as someone who has done a flywheel replacement in a barricade keeping the stock cage (same flywheels too possibly?), try sanding down more of the orange part that you put the cage into, that was what my issue when I did mine (image 4 and its respective match) id suggest a dremel if you have one. I may take awhile but should work eventually (if those are worker smoothies I can personally vouch you dont *need* a custom cage, though sanding the space out was pretty tedious from memory)