Is there something different that can be put in place of the factory rocker boxes. Mine were cut up when I bought my 1970 Blazer because the prior owner had put saddle tanks on. I can buy reproductions on ebay for $235 shipped. Also, I talked to a local street rod shop owner who said that he uses some tubing and ties everything together so that you do not need the boxes. Which way is better and why ? Also is there othere options that someone here has done ?