Shift/throttle control lever

[jmad78]

So, I stumbled and fell into the shift lever. Cracked the plastic piece at the top and now shifting is a bit of a pain. I’ve searched everywhere I can think of and have been unable to find individual parts for the lever. The only thing I can find is the entire unit. Below are pics of the unit for reference as well as a pic of the black plastic piece (entire piece) I am needing. At this point, I’m think about contacting a 3D print shop. Anyone able to offer a better suggestion or line on finding the part needed?