Welcome,
This should work fine if you are up for doing the troubleshooting, but there is no API for it – it would be necessary to stop using the convenience path methods in OEAcousticModel and instead pass the real path to your model’s top-level directory. This is an advanced topic and gets a bit beyond the scope of support given, but I would recommend experimenting with passing the path to the model to the various methods that ask for it, and I think you’ll be able to get it working.