If you have a power rack, you can DIY
https://forum.bodybuilding.com/showthread.p...53518781&page=1

Else, you can go with this, it is not 100% right but almost there
https://item.taobao.com/item.htm?id=573656209900

I dont think you can get one cheap, even direct from China
https://item.taobao.com/item.htm?id=523929971092