4age 20v Blacktop throttle bodies

Hi all, I was wondering if anybody had the full dimensions for a Blacktop quad throttle body?

such as intake diameter, runner length, mounting plate size, bolt holes, distance between bolt holes, etc.

if not, has anybody in New Zealand (preferably Auckland) got one that I could possibly borrow for a short amount of time?

I'm a CAD student and I want to design an intake manifold and plenum with a large ITB to replace the quad throttles and switch to top mount injectors for a turbo set up.

if anyone also has a good condition Silvertop short block with internals and/or a good condition Blacktop cylinder head for cheap in NZ, please let me know.

Cheers