Does anyone make an electric kick scooter with a capacity over 300lbs for under $1000(usd)?

Trying to cut down my vehicle usage, however my 75lbs dog comes to work with me every day. I live in an area that is too hot for her to walk with her feet unprotected a significant portion of the year.

I was hoping to convert my niece's old bike trailer into a dog trailer to pull behind. But so far the only two I have found were $1300 and $1500 and it looks like one of them is no longer available.