Weight Cart Sample Leads

I need a weight cart made to carry 11 x 20kg weights and 1 x 10kg weight. Large easy to roll solid rubber castors with brakes. The lid needs to be made and hinged in such a way as it lifts off the cart and there is no edge remaining that the weights would need to be lifted over ie the sides or the cart are part of the lid.The cart must be SS. I dont need to purchase the weights just the cart and will be using the round Troemner weights with the knob on top. I also need a lifting hook or so device that fits around the knob on top of the weights to facilitate lifting this device needs to be easy to clean and must not damage the weights.

Looking for weight carts for 50 lb. test weights and 1000 lb blocks Also, looking for used test weights.