SEMA 2012, 1969 Camaro, who built it?

[Operations]

I saw this 1969 Camaro at SEMA, it was outside under the Magnaflow tent.
What I'm really interested in is what suspension is used up front, I see the ZR1 OEM wheel and ceramic breaks. That ZR1 wheel backspace is way out there, and I can’t find anyone's subframe / suspension working with that wheel offset.

here is a link to a pick I found later online.

Thanks in advance for you help