Thanks for the suggestions on fixing and the support from the users here. I appreciate the positive vibes!
Seems like it's pretty close and I can just drill in the connection to the input jack, yeah? I'm not sure what it's supposed to look like, but if I just need to feed a wire from the input jack to the area for the electronics, then I should be good.
My daughter has done some initial sketches and is going to work on painting. She's taking it slow. I started up a build thread to try and keep track of the progress when we make some. Right now, she's testing paint swatches. Might be a bit until we get to the next step.