Sway bars?

[P71]

So I've been trying to decide on some stuff for my Rx-7 before the autocross season starts (in 4 weeks!). It's an 83 GSL (12A with Nikki carburetor, 4-wheel-discs, LSD) that's pretty much all stock. It runs well and did pretty good last year with just a set of 195 Falken Azenis Rt-615's on 14" factory alloy wheels. Pictures from the events show LOTS of body lean so I want to get some beefier sway bars for it. The shocks are OEM but are only 2 years old so I'm skipping those until a complete suspension rebuild.

The problem is there are a lot of choices! Ground Control, Suspension Techniques, Tri-Point, and Racing Beat all have sets plus Mazdaspeed shows some in stock. I'm leaning towards the RB setup. Any thoughts?

Also, class-legal means nothing to me as I run with the Porsche Club, so my class is "non-Porsche".