Very cool indeed. I have an EG33 I'm putting into my '93GF8 Chumpcar and this only provided more inspiration.
I've seen guys using Griffen and Saab 900 radiators for their swaps but we've been talking about doing a rear mounted radiator, similar setup to yours but reversed. How are your coolant temps with this set up? What piping did you use to and from the radiator? If you've got any pictures of how you did the plumbing that would be great.