I called every hardware, industrial supply, farm and tractor supply place within 25 miles and not one stocked the hooks. I gave up and went online to this place:
TrucknTow - Weld-On Grab Hooks (Pellican Hooks)
They are sending 3 hooks to me. Cost $8 S&H, but I'll have my hooks on the 30th. Thanks for checking into it for me.