'Two' new members joining in one day? That seems new to me.
Technically, the last total newcomer (RustyRedNo_5) posted here last December, so it's been much less than a year at the time of writing. This veteran community will be more than happy to help out with spare parts, layout designs and identifying items whenever needed. Personally, I'll only share my thoughts and suggestions once you'll start one or more separate threads for your layouts, because this isn't really the place to do so.
As for you, PRRFan: Luckily, we have a Brown Wooden Tracks board that should be the perfect place for you (assuming you haven't found it yet), so we don't just leave out users of other brands (Thom Tank, Chuggers, whatever floats your railboat). If it's even somehow related, BPT has it covered.
Enjoy your battery powered rides.