Power up my 3 Truck Shay static display

[tony9492]

I have a G scale Bachmann 3 Truck Shay on my mantel (with log cars and caboose) that is DCC ready and I want to power up the lights, fire box and sound. Looking for a sound card, controller and power supply to accomplish it.. Obviously do not require multiple trains etc. Haven't seen anything on line that fits the bill and hope to get some advise on the project that is cost effective (or not). May try to include drive train operation without motion in the future with brushes or rollers (would hate to waste all that magnificent drive train function) but not on the front burner for now.
Thanks, Tony