Dear ManuelG,
Thank you for your interest in the MMB!
For several models that are implemented in the MMB, there is currently no original replication package available for download. Unfortunately, the models you referred to are among them.
However, you can still take a look at respective implementation codes for these models (in the folder “models” stored within the MMB directory, once you install it). This should help you to understand most of the equations and structure of the original model.
Hope this helps.
Best regards