Differences of the remix compared to the original:

I do not like the approach of storing different values of keys and coins in one box. From my perspective, it is not convenient to grab the needed token from a mixed box. That’s why I created a separate box for each type of token, with two compartments to store the tokens of different values separately.

Description:

I decided to keep the large paper inlay because it's nice and can be used as a separator. The card box from the original model fits perfectly into the small compartment. I’ve uploaded the file here for simplicity.

Then, you need to print two boxes for both coins and keys and place them in the large compartment.