Scale length changes are possible, but very VERY rare. This bass was originally short scale. It may have had a replacement neck, but all I can locate is the original index card, so just the original build details, which Paul referenced in the other thread:
top and back: Schedua
body: Mahogany
through-body neck: Maple and Purpleheart, 30.75 short scale
fingerboard: Ebony with mother of pearl inlays
peghead veneers: Zebrawood
originally made for: Rothchild
birthday: August 9, 1977
Sorry I don't have more details.