Well I believe you and I already spoke via PM's so you already know my take on this.
I tried to stay with GM OEM parts as much as possible. All the mods I've made are in my signature below so no need to list them. My whole design is to make a "what if" GM Performance V6 based on the SEMA car posted
here.
With soo many SS Brembo take off set for sell and the 1LE kit has dropped in price it's hard to take a serious look at the GM parts. With that said JDP Tyler is a great dude and is very knowledgeable about out 5th Gen cars and their suspensions.
Either way you can't go wrong.
Happy modding!