You're welcome Glen.
Yes, currently Murray Racing is in the process of reconstructing GT/103 back to the early '64-'65 design using GT/104 as a template for the "shark nose" and rear deck. The exotic 255ci 4-cam "Indy" engine that was previously in the car is now a centerpiece in Bill's living room.
As for the BB connection, I work for Bob here at his racing school in Phoenix. I'll post additional images from our archives when I return to the office on Monday
Cheers,
JP