I'm not sure how your rules are were you race but I would get a rule book or chassis spec sheet. My mild steel Daytona was well built and would easily pass 8.50 cert. When I wanted to lower it to 7.50 we figured 4 bars but when it was on a host it actually needed 8 as some of the rules changed over the years. They were all small bars and only cost 400-500 dollars but it could have gotten crazy real fast. Hopefully he one you are looking at has struts already and a good rearend or once again it will cost big money to get track ready. Sometimes a deal isn't a deal.