I believe the builder you seek is Paul Hecht. he's a builder for hire for Rails Unlimited kits. Two years ago at Indy Oscale I had conversation with him about the unusual vertical brake staff gear box (with exposed Gear)) if this is what you speak of. I don't have any direct contact Info but I would try Ted Schnepf Rails Unlimited, the two of them were set up together at Oscale Chicago this weekend. Mike Dietrich