I've created a simple program, that allows user to make SH3F file from a folder with models. It sorts model automatically, creates PluginFurnitureCatalog.properties file and compresses it all to ZIP archive with SH3F file extension. Now it is Russian lang only, but soon I will make multilanguage support and translate it into English.
My homesite is https://sites.google.com/site/sh3fcreator/ (it's Russian too), and download link is https://sites.google.com/site/sh3fcreat ... ects=0&d=1