Cargo bike people, help me figure out if I can make this work. I have 2 big dogs: a 65-lb pitbull and a 45-lb border collie / great dane (?) puppy that is still growing. Sam might be getting a second job, and I would need to do doggie daycare pickup. 6 miles, mostly downhill till the end. I'd like to keep this under 2k. I'm thinking of a Booyah XL dog bike trailer with/ an electric secondhand long tail cargo bike. Can it be done?