wanting ideas on building a body cart for 70-74 a bodies

when i built my rotisserie, I used 1500# casters from HF. The pivot, even with ball bearings is really poor and I have to fight the spinner every time I have to move it. I wish that I had spent on better casters. to move your cart across the ground you will need some bigger tires. Casters won't cut it. Good luck. L8r