And more importantly if you go harness get a HANS type device. Once strapped in, your body now has no give so your neck takes the damage in a severe accident. Your stock 3 point harness lets your body move around a lot to dissipate the energy.....the harness very little so you neck becomes the weak spot.
I was able to buy a nice set of team techs from members who no longer use theirs. Ask around, I'm sure someone is selling. The manufacturer will recertify them if you send them in. Cheaper than getting new ones.