Ender-3 X-axis carriage dummy

I'm working on a new hotend mount for my Ender-3, and I thought I'd share my coarse approximation of Creality's component. This was the definition of "quick and dirty", I didn't remove it from the printer, but I did use digital calipers, so there's a modicum of accuracy. Supplemented by the few CAD drawings I could find online, and voilá!

You might notice some discrepancies between this and the CAD you'll find (it requires persistent Googling, but it's out there), these dimensions are taken f