Classic Industries has some of what you need. I have seen the support brace and the U clamp set somewhere but cannot remember.
Are you trying to fit a sway bar to a car that never had one?
Have you got the tabs on the lower control arms?
Correct, I am fitting a non bar car. Yes I just purchased a set of lowers with the tabs. All I need is the metal mount that bolts to the K frame. I Will have to make a set.