Link to DICOM viewer and data: https://drive.google.com/file/d/1sGwVR15TJ4dF5Sjv_GQLHHDYM97QBRSZ/view?usp=sharing

These are some of the scans of my own skull and jaw. The parts are separate so you can show how a jaw moves or whatever else you are feeling.

Doesn't Matter

Yes

Best to use PVA or other dissolvable supports