If your thinking to build that kind of pit without those plans think twice , i'm at week 2 of my built and so happy to be able to work with such detailed plans !!! I wasnt sure at the beginning about buying the cnc cut plans but it cost me 10 % more on the steel then if i would have bought some unmovable 1/4 5 ' x 10 ' steel sheets so again think twice because the tremendous amount of cutting time , the number of plasma tips , carbide blades that you ll spend ..... and the most important your ruff is your finish so for a 75" × 35 " × 30" rectangular cooking chamber to be perfectly line up you need some perfect cut so you need those cnc plans !!! And what to say about there customer service , they answered my questions in matter of minutes so ... After all that said do i really need to tell you how i would recommend you to buy from smokerplans.com ..... just like a mandalorian would have answered "this is the way"