Hi Peter,
Question: "but all I need to know is can I use a car or suv rubber."
I've seen Special Trailer ST tires recommended most often and also
Light Truck LT tires recommended for trailers. Most experts do not recommend Passenger P tires for trailers. Not sure what you mean by SUV tires, as some have P and some have LT. Look carefully at how much
weight you will carry on each tire and buy a
weight rating 25-50% greater for a margin of safety. Stay away from cheap tires!