Great project, pictures, story. Sounds like your wife and mine are similar in thier view of projects - they are all for it if it makes $$ sense to THEM, sometimes the convincing of that takes more than one "sit down".
Cool to do something different.
What is the weight balance of the car now with the tubular K member up front?
I would think you'd be at a handling and braking advantage over a V8 car on a road course with your set up.