As Tim stated, I am in the process of designing and manufacturing a Vector kit.
The Vector I purchased was in need of significant TLC, and is now being restored. It's a good example of a car which would probably never have seen the race track again without the Fit engine.
I am the Chassis Design & Development Manager at HPD, but this is not an official HPD project. You would have figured after the DB-1, DB-6, and RF99, the Vector would be a snap, but it's been a good challenge restoring the Vector and even having a face to face meeting with Wiet Huidekoper, who originally designed the car. I will post those notes online eventually.
The majority of the kit will consist of purchasing needed parts from HPD, and for the exclusive Vector parts, I will sell those directly.
Here is as link to my original thread:
I will post an update today