The only sway bar bushings I would have had for $3.00 would be the ones like I sell now that go to early sedan in the lower control arms.
The sedan sway bar front bushing ID is 14mm (9/16") and the coupe is 15mm. The red poly bushings you find around are 5/8" and the bar seems to flop around inside that. Bill's bushings are the best fit I have seen, secondary the prototype bushings I made for myself from acetal plastic (Delrin).
Miles