I really like the idea of a full featured game HDF.
However the whole process looks a bit over-complicated to me. Typing path names in a terminal is a no-no (especially for windows users
). And performing "only" 27 steps to get basic things done, err... no thanks.
Why not sharing a complete .hdf without the copyrighted files? Use a single directory where the user can throw stuff in, like kickstart, wb-adfs, rom-key etc. and the installer script. The script could identify the required files and create s:startup-sequence with "copy kickstart-name TO dh1:devs/kickstarts/whatever" and also create/extend .uae config e.g. "floppy_0=/path/to/wb.adf"
If things would be a little easier, I'd like to make a bash- or python-installer for linux.