It's been a while since I looked at this, but I'm pretty sure there are just parameters you can set. There should be some comments in the code for SPI vs I2C and you should set the version down to 1.0 or something like that.
I don't have time now to really jump in deep to this, but good luck
When you solder the cable joints, make sure to cover the back side of the stators / dust covers with some paper to prevent any spatters from the solder / resin from melting through the dust covers. I just cut some circles and used a touch of masking tape.
Just passing on some advise from our friendly Icelandic Stax guru
Good luck!