Motor assembly on MF5612

Looking for some ideas so setup the motor on my 5612. I’ve come to a bit of a mental block and would love to hear any suggestions.

Hi, If still required ,
I suggest to fix a large gear ( or pulley with teeth) below the 3 arms of the steering wheel. Then fix a motor with a gear or belt to drive the large gear.
Or dismount the steering wheel and check if some room to place a gear between the S Wheel and the support.

The problem I have is with all the curves it’s a right faff to make something to secure the motor in a way that allows me to disconnect the gears