Need help with safety gear for track

[Klimo]

I have been slowly getting into tracking my '01 2.7L over the last 2 summers. Tons of fun! This summer it's time for some upgrades. Most important are a couple safety features. extended roll bar, harness, hans, seats. After some research the B-K extended roll bar seems to be the choice. With that installed do I need anything extra to attach a harness to? It seems like the Scroth 6 point harnesses are the way to go as well. Now with regard to seats. It would be nice to not have to replace the OEM ones but in order for the harness to work properly this is needed. Would love to get the GT3 Euro seats, but at $4500+ from suncoast this is not an option. I would consider a gently used set in the 2k-2500$ range. Does anyone know if and where this could be a possibility? My car has the sand beige interior so those are even harder to find. After looking through recaro, Sparco, and momo, there doesn't seem to be much in the tan color variety. I am looking for something that would be comfortable for both street and track. Any comment/suggestions are appreciated. Oh just ordered fabspeed 2ndary cat bypass and maxflo muffler with ECU tune. Being installed next week along with the extended oil pan. Will post results of that as well. TIA!