FWIW, the chassis is a virtual clone of the AMT 289, but adds the benefit of poseable front suspension. The swap is easy and recommended if you have a Lindy taking up space on the shelf.
Alas, conversion to the "Bordinat Roadster" is more complex than a roof whack, lovely as the result might be.
The cars still exist in storage at Ft. Wayne (!) on behalf of the Detroit Historical Museum, along with a ton of other great cars and artifacts of our auto heritage.