Alright, just in time for the Blender 2.82 export is done. Big thanks to @Khreator for giving a great insight into exporting issues.
List of features:
+ Export support
+ Support for importing/exporting multiple skins
+ Better scaling adjustments, eyeposition follows scale factor
This is still considered an alpha release. But it should be good enough.
For info, roadmap and download you can visit
https://github.com/victorfeitosa/quake-hexen2-mdl-export-import