Seperate transformers for everything?

I'd move the switches and remote tracks to the S and keep the VW for trains. 

On my layout a ZW powers the trains while a Type Z handles the lights, operating accessories, and remote control tracks. I'd always recommend have the trains power source separate from the accessory power source. 

To reduce the power draw in general, I picked up some Direct replacement LED bulbs (available with the various bases with resistors already built in) and swapped them out on all my 022 switches and bumpers as well as my 2500 series passenger cars and the difference was quite noticeable.  Look for the "warm white" or "soft white" and it pretty much looks the same

Given the peak power draw of the 022 switch, and it's effect on command operations at times, I'd consider aux power for all the switches.

Obviously, my recommendation for the passenger cars is LED lighting.

AXP889 posted:

 (available with the various bases with resistors already built in)

Apx889,

Where do you get your LEDs with resistors already built in?  Part number and manfactuer?

It was a while ago.  I just did a search on ebay and bought a bunch.  I think they came from china.

As I recall they were even listed as "replacements for train bulbs" or something like that

I get my LEDs with resistors from Evan Designs.  There are different sizes, so you will want to shop their website at www.modeltrainsoftware.com.