Built

Hey everyone, I need help with fender flares for bigger tires. Currently, I have a 3 inch suspension lift on it, with 31 inch tires. I'd like to get some fender flares so I can put 33's on and eventually 35's. The problem is, the only things I can find are the Bushwacker extend a fenders. I was just wondering, if I were to just buy some other brand of flares and cut and bolt them on, which ones should I get?