Have a new idea for Bachmann Spectrum line. What about a P-8 Pacific? Like the famous running SP 2472?
(http://upload.wikimedia.org/wikipedia/commons/8/84/SP_2472_Coming_into_Paso_Robles_May_1994xRP_-_Flickr_-_drewj1946.jpg)
That could be a good seller, and would be a good running mate with the Daylight 4-8-4. It may justify the $250,000 or so it takes to bring a new model to market--maybe.
What's the driver diameter? If it's 80 inches, it could use the Pennsy K4s mechanism as a base, and cut down on that $250,000.
You might want to check out this post from a while back.
http://www.bachmanntrains.com/home-usa/board/index.php/topic,14020.0.html