This is the updated version of this thing: https://www.thingiverse.com/thing:2824974
Pretty close to the same design, but with the more enclosed case for the board built into the base.
For the linkage, this was confirmed to fit: https://www.amainhobbies.com/blade-servo-pushrod-set-eflh1515/p164489
Category: R/C VehiclesThe author marked this model as their own original creation. Imported from Thingiverse.