4 or 6 Point Roll Bar

Check with Rhodes Race Cars. I'm running a modified version of their 6 pt in the rx7. Ask them to email you a copy of the CAD design before you buy so you can check the measurements. I wound up making a couple changes to their design (widened the top of the main hoop 2" and straightened the main hoop legs) and they made the adjustments for no extra cost. It was on me, though, if it didn't fit, as to be expected, but it tucked up nice and close just as I measured.

Not saying their kit won't fit, just that they were fairly easy to work with. I personally went with DOM.

http://www.rhodesracecars.com/67-76-DART-SCAMP-SWINGER_c_5371.html