Finding parts and lift kits

I see very few accessories, parts or lift kits for Columbia Par Car carts

Are there other manufactures parts that are compatible with Par Car?

What lift kit is compatible with Par Car. I have not seen any that say made for Par Car.

When the say 5" lift.... or 12" lift.... is that the height increase from ground up to the bottom of the cart body?

I'm totally lost

Thanks

Jim