A good approximation of an AS-16 is possible using Alco RS-27 running gear. I made a sheet brass chassis to fit the AS-616 body
and copied the truck openings and Gen 1 Protosound mounting holes from a 1997 vintage RS-27 chassis, and transferred the
pieces.
The trick would be to get stamped AS-616 chassis without the 6 wheel truck mounting holes ( not impossible but you have to find
out who ( Atlas? ) is getting the AS-616 and RS-27 tooling. )
Modern computer controlled machining processes like abrasive water-jet machining could do the hole machining cheaply on
small batches of chassis.
The 2015 RS-27 chassis (below) is 5/16 inch shorter than an AS-616, so the same internal layout will work.
The exhaust stacks of each engine are roughly within one inch of each other ( compare photos ) and there appears to be
room to move the smoke unit around on the chassis, so even the smoke unit might possibly be kept with the proper body
adapter. It's do-able.
