having trouble finding info on a c-notch for my blazer.

need to know if i have to cut out the floor, if i have to remove the fuel lines, blah blah.. Im wanting to cnotch it myself, cause hell.. this thing is starting to really tap the old bank account and Im not gonna pay a shop to do it unless it involves some serious fabrication

info, links, where i can buy one. Any help would be appreciated.. oh and ill DEFINITELY POST PICS!!