I have seen those before but I think I am going with the brake ducts from cobra restorers. The are the original style. I just hate to pay that much for fiberglass tubes!
On another note, this is really cool. With the new floor mount pedals Hurricane was able to create a new type of "glove box" for SC cars with out the standard glove box in the dash. It he pictures are a little fuzzy but you can get the point.
This would be a good place for insurance cards and registration papers. For my friends in Texas maybe a bottle of hooch and a Smith&Wesson