Dean and Rob sold SVC 8 months ago - The new owner/previous owner, Tim, ran it into the ground and they are actually having an auction pretty soon for the parts and dyno. Rob still does tuning and fabrication work, you can reach him at 602-568-6038. Don't know which TT Fox you are talking about but Rob still has his Fox with a Lightning swap in it.
I would avoid Performance Solutions at all costs they are "part tuners" and never fix real issues. I have a long story and hatred for them over there. I bought a car from a guy that had Performance Solutions do all the work and it was and still is a nightmare.
Thanks for the information, interesting. The TT fox was not the same one as Rob's 5.4 swap. The TT was sitting in the back of their shop for at least the past few years. They were fabricating a full IRS/cage/custom interior, etc. I was in Phoenix late last spring and stopped by to say hi. Dean didn't want to part with it, and I since took his advice and bought a Cobra.
Matt