Thanks guys! I've been waiting a year for this unit!
It will be David. There are two screws under the button assembly that hold the wires, so hookup should be a breeze. Be aware that different sounds play depending upon button timing. If you push the start button, and then again within 5 seconds, the water sound will play a long sequence of over filling the tender and making a mess. I think it's hilarious! If you start it and then push the button AFTER 5 seconds, it will simply end the watering process and rotate dialog. I got pretty excited about this product when I saw the HO version in operation.
You can order it weathered with ATSF, UP, GN, NYC, PRR, WP or no logo at all. Mine is unlettered. They also offer it in barn red unweathered. (That one sounds kinda ugly to me. hahaha). Broadway Limited sells out fast so if you guys want one, better snatch one up.