Hello Rick:
I have owned TISA 995181 since 2002. Bought it from a friend in Toronto and brought it back to Germany. Those 1996 pictures are fantastic. I have not seen them before. I believe they were taken at GingerMan Raceway which is owned by Dan Schnitta one of the TISAs previous owners.
The written documentation I know, the originals came with the car. I think those were written by Dave Foley who restored 995181.
As you can see in my pictures, following the link to Google Picture, I have brought 995181 back from semi race setup to 1965 as works specification. It is a great handling and fast touring car that I really love to use as often I can. Today it wears the registration number M-VK 514 as used in period by the factory race car driven by Hubert Hahne, but 995181 is not the same car! The number simply was available when I registered it for the road here in Munich, Germany. 995181 was originally a US market car imported via Max Hoffman.
The Alpina headers with side exhaust came with it when I bought it but have since been replaced by a large bore factory cast exhaust manifold and a 2000ti exhaust system for street use.
Since owning 995181 I have collected everything TISA that I have come across. I am happy to share information with fellow TISA owners but have to find the time to do so.
I am very happy to meet next time you are in Munich!
Stephan