Recommendation for pet stroller?

[*Caro]

I need to buy a pet stroller for Deska for when he gets his elbow surgery. He is very long and will need to lay on his side for the first 4-6weeks. I need to walk Tully at the same time, altho I am tossing up hitching her to the front and getting some extra exercise by pulling it.

I've worked out its cheaper buying one on line and paying the $100 shipping than buying one in Oz.

Does anyone have a recommendation for a stroller or a brand of stroller.