I've been seeing some 8" cones that seem like they would be up to task for a 3HP build. I was thinking of making a removable top for use on one of my motors, using oversized parts to allow for proper excursion. I want to have the meanest little 8" there is but I don't want to buy a Sundown or DD or DC, I want to build it myself. Would this be fun or am I being stupid?