I had been knocking around the idea of replacing my folding shifter with a rotary knob for almost 4 years, since my first folding shifter went bad and the vehicle had to be towed for a replacement. The lightning guys beat me to it, and about a dozen of those guys have swapped theirs out already. They buy a rotary knob online and 3D print an assembly to go into the hole left by the shifter, which then holds the knob. One of the lightning guys sent me a kit for the swap since I had helped...
Folding Shifter Delete & Rotary Knob Swap
Folding Shifter Delete & Rotary Knob Swap