I would like to find a vehicle that is pedal powered (with the possibility of electric assist) that my wife and I can ride and transport our 3 dogs (all are over 70lbs) around town. We live in a small rural town and take our dogs to just outside town every morning and walk with them. One of the dogs has hip dysplasia, and is fine when she can walk at her own pace (which is why we go out of town, so she can be off her leash). I also work not terribly far from home (<1km) and 1-3 of the dogs come with me everyday.

I found the quad I linked, but at $5k+ it is a bit much. I know this is a pretty niche thing but was hoping someone has had better luck with finding something like this at a lower price point, before I look into building something myself.