Can you provide a link to where you bought it (eBay, alibaba, etc)? I saw a similar looking bike online listed at nearly $3k.

Does it really hit 43.7 MPH? If so that's crazy fast. With one battery, what is the max MPH?

Any idea what it weighs? Over 100 lbs?

I get that for city riding it's really helpful to maintain a narrow profile but from years of riding a cargo bike around city streets, I recommend carrying loads on the sides of the frame rather than on top where the seat cushion is, lowers the center of gravity for a more stable ride. I previously had an Xtracycle-equipped bike and their bags were super useful though I get they may not be big enough for some uses.