I ordered my some of my suspension from americanmuscle.com couple days ago i rodered the h&r springs, mm cc plates, and bbk isos rear and front..i called greg at ret in downey and asked how much labor would be one of his workers quoted me 300 or so just for labor..my friend owns a shop and he has a cobra also and he did his springs there and they turned out greaT...should i pay 300 and some change to get it done at a place with good reputation or 150 at my buddies shop..is it dat much of a difference were i get it done?????????