Why not add an accessory voltage controller to your 180w brick(s). Lionels powerhouses are a ton of power with a super fast acting breaker.
These allow you to set the voltage coming out of the brick.
http://www.lionel.com/products...ntroller-avc-6-14186
https://www.lionelsupport.com/...ents/71-4186-250.pdf
I imagine one brick will power a ton of stuff, sell off what you don't need when you decide what your requirements are.
FWIW,the accessory terminals of your CW -80s can be set to a desired voltage as well.
You'll need a volt meter to check your output when setting the brick / AVC or CW-80 these can be found online and at your local hardware store for $20 or less.
I have this Gardener Bender GTD 311 and it works like a charm: