Just something to add.
I watched some DVD'S from hotrod magazine where the guys at GOODMARK rebuilt a 70 chevelle convertible with all new sheetmetal from goddmark. When it started I thought that they probably hand selected parts that fit perfect so it would make their product look better. To my surprise the guy had to split a fender at the front and weld in a small piece to make it fit perfect...he also had to close the gap at the rear with a ratchet strap.
I understand your point though.They told you one thing and the end result was different...I believe that is what you have issue with.