Need advice on Equipment and probability.

Greetings, total newb here.

I am wanting to do a LED scanner bar on front of my jeep, like from Knight Rider, under carriage LED lighting, FX sound board to play KITT sound clips, and have a loud speaker under the hood, all controlled from a matrix keypad with LCD screen. The theory would be to be able to select a button (A) and then control the strobing effect of the scanner bar with multiple button codes, then select say (B) and be able to control multiple sound banks with multiple button codes, then select (C) to control effects of under carriage lights. Am I looking at multiple arduino’s, or one arduino’s and multiple shields? Probably would need an Amp shield to drive the loudspeaker? Would I be able to integrate a Mic to create a PA or megaphone from the same shield that drives the FX sounds? What are your recommendations for equipment if this is possible? I am willing to learn the coding, not looking for an easy pass. Thanks in advance for your consideration.

For example integrating the following components:

Arduino uno or mega

Arduino Shield Audio MP3 Trigger OR Adafruit Audio FX Sound Board - WAV/OGG Trigger with 16MB Flash

Adafruit NeoPixel Digital RGB LED Strip