Take some photos and accurate measurements of your rack to a good local welding or machine shop and have some custom J hooks made. It really shouldn't cost you much. I had extra spotter arms and j hooks made for my rack for less than the retailer wanted for original equipment. If you're going to be in the U.S., I can recommend Black Widow Training Gear.
Black Widow Training Gear (BWTG) They specialize in rack accessories and did good, quick work and shipped it to me in time for me to send it overseas with my stuff. I'm sure you can find a local Chinese shop to make what you need, though.