I was wondering if there is an in-depth step by step tutorial explaining in detail how to go about preparing an SFS hard drive 
Any ideas? Thanks!
0. perform a backup copy of your important data.
1. copy SFS to sys:L (IIRC filesystems should be located in a partition that can be read by the rom so store your filesystems in the first 4GB of the HD in a FFS partition that can be accessed from KS3.1)
2. open HDToolbox. In the filesystems section, add the SFS located in sys:L
3. SFS will appear in the list of filesystems installed together with his version number.
4. Choose an empty partition and in the part where you set the block size, mask transfer, filesystems... choose SFS.
5. Save all the changes and exit hdtoolbox in a system friendly way. It will ask if you want to reboot, tell him you'll love it!
6. Once your machine has rebooted an alien partition will appear. You'll need to format it. You can format it from WB just like you would do with a normal partition.
7. enjoy. There are tools to perform a backup of the RDB, go make one backup as it would make save your precious data in the future.
8. did I miss anything?