foldable

I am aware it has been done but the post about it on this site was with a Staton kit. That’s more expensive and not on amazon. Would it be possible to install it and it still be foldable? Engine kit on amazon...

Hey all, this is my first time posting to any sort of forum, so I hope I am doing this correctly. I'm a college student looking for a more convenient method of transportation, so I'm hoping to motorize (gas) my foldable citizen gotham 7 bicycle. Here's a link to the bike...