This is more or less what I was thinking as well!
I gave you a pretty large amount of homework to look through, but once you get through all that it’ll just be ironing out the details! The Unreal Motion Graphics UI Designer - or simply UMG - can do all of what you’re wanting with the buttons on the side with some pretty simple widget work. I’m pretty sure what I gave you should be enough to accomplish the functionality, leaving next month to work on getting better models and sharpening out the dull edges!
It might seem like a lot but it’s an illusion, you should be able to get a grasp on things fast. If you don’t, that’s what we’re here for!