One thing is for sure, you have quickly become the resident guru when it comes to VHS source material. Your setup will surely prove useful not just for this project. It could even become a side business.

You might want to check out the Yahoo group "oldvtrs". Through a similar (non-SW) project I got drawn into EIAJ and CV video restoration, and found the oldvtr forum invaluable. There are some real pros there who know their stuff. I'm sure they'd be interested in discussing your setup and your results. They might even steer some work your way.