You're Welcome, I understand the not planning on getting that involved, my 3R O Gauge addiction, started out as "Just a Train for under the Tree", that was 2005, and I haven't bought any HO since.
The Z-1000, should be plenty, it is nominally rated at 20 watts more than a Lionel CW-80, and I didn't have trouble until I tried to run a 2 motored Lionmaster Challenger, pulling 8 K Line 18" heavyweight passenger cars, 4 bulbs per car IIRC, it didn't like that.
Doug