Just ordered two hds3 12's and I'm not a box builder paid a local shop to build my last one but dnt want to pay that again wanting to do it myself but ineed help figuring out all the cuts n lengths and port and all that I'm putting it in a 03 Chevy blazer 4 door and love the low low bass. also wanting subs to face the roof and port to face the hatch. if anyone can help me figure out how to do this to make the best box for my subs and for bass it'd be greatly appreciated and or if u can send me to someone or a site that will help me come up with a blueprint on how to do this build b so awesome thank u hope to hear from yall thank u