Dated myself?! I was one when that film was out! Sheesh! I'm not that old!
As for the the OLED screen, it won't go in the standard base and that board in the background is merely for demoing. I'll be making a custom base to house it keeping the dimensions (except height) the same. The post the model sits on will be a quarter circle that connects toward the back of the base to keep the screen unobstructed as possible.
I think my biggest issue is getting the firing arcs right.
I was VERY tempted to throw in a sensor and speaker to make that happen. There are limits though. I may make it Bluetooth later on so I can remote update the display. Right now it's a static image, soon to be a composite based on a file on the SD card. (Like enter text values and it will draw out those numbers for the vehicle stats).