I am working on my first permanent layout and I want to run DCS, but I have never used it before, although I am aware generally how it works. I have gotten both Barry's book and the OGR DVD and they have both been very helpful.
I am trying to figure out what and how many DCS components I will need. I want to run both MTH engines (command) and postwar engines (conventional) but probably not at the same time. I was thinking I would need (1) Z4000, at least (1) TIU, (1) WIFI Unit, and possibly 3 AIU's for the number of switches I have. Would I need a separate power supply for switches and another separate power supply for accessories? If so, what power supplies are good for this? I have an old PW ZW and an MRC Dual Power 027. I didn't want to use them for track power, but would they work for accessories or should I use new bricks? I know there are multi ways to do the setup/wiring and I'm just trying to figure out the best way for this layout. I am using gargraves track and ross switches. I have attached my layout design for reference. The black is the bottom level, blue is the 2nd level and red is a grade going up and down from top to bottom.
I appreciate any assistance. Thank you.