Addco front sway bar problems

I do not have factory mounting brackets on my lower control arms. I can fab some up no problem. I'm switching to disc brakes from a 73 also, but those lowers don't have them either. I had looked at buying this sway bar because "supposedly" it will work without the stock setup. I pulled the trigger when someone posted it for sale cheap on here. Now I know why,LOL.

It is for an a-body, 45" center to center.