I understand. Unfortunately, as this is not an issue with the .deb rather that the required dependencies are not longer supported we will not be able to resolve the issue. I am sorry.
An option may be running a VM with an older Linux version when you need to use FMOD. Any minor version is compatible within a major version, so opening the older project in the updated version (2.02.24) should not be an issue. Please create back ups before doing so.
What is the reason that you cannot update the a more recent version of FMOD? Maybe I can assist in the updating process?