I just created an account and I'm definitely reviving a somewhat dead post, but I have to know after spending the last few hours reading this whole swap process. Where are pics of the car as it is now? I would guess maybe the car on the front page of the site you posted,
http://www.trackntrek.com, would be it. If that's the case, then it looks like you did go with the blue instead of grey. I also noticed you haven't posted in a little over a year. I hope all is well.
I had a 1990 Q45 about 10 years ago, and at the time, there were a few 300zx swaps on the net, but not much on it. I bought a 1991 240sx a year later in 2004. I worked for a Nissan dealership for 2 years in the parts dept, and a good friend of mine was a tech there, and we always talked about what a cool swap a VH45 would be in a S13. Well, after reviewing your post here, I have to say it was as much work as we thought, but you did one hell of a job on everything.
I just wanted to post to this and see if you had any pics of the car now for those of us who stumble upon this relic and became enthralled in it. Great job man!!