Help with motorising fairground MOC

Hi, apologies if this isnt the right place to post this, please point me towards a better sub if there is one. I wondered if anyone could help me out. I build MOCs of travelling fairground rides and currently on my third which aims to be a re-creation of a KMG 'Freak Out' ride, which you can see in action here: https://www.youtube.com/watch?v=YrAPIkJRGus I build at a relatively small scale, and build in black whilst im proto-typing. Attached are a couple of photos of current progress: Im...