Re: Advice needed on Intake stuff.
The AU's run an explorer manifold. Same lower at the GT40 as used in the EB & EL GT, but the upper doesn't flow as well, somewhere around 160-170cfm compared with 200-210 for the GT40/cobra manifolds.
I think it is a good deal, especially installed. As shav said, you would probably be looking at over $1500 for similar second hand parts, and then a couple of hundred to install them.
BTW, fuel rail and injector loom is exactly the same as the stock one so you might save a bit there if he will seperate them.