Make sure you have this in your path: https://pbx.sh/meimagetool-fragment.tar.gz
You can extract the binaries from an image by running
# save your ME region as clean_rom.bin
make extract
If you want to use a newly created ME region (by FITC) you can directly extract your MFS using
mfstool x region/MFS.mep mfs
meconfigtool x mfs/intel.cfg intel_cfg
meconfigtool x mfs/fitc.cfg fitc_cfg
Otherwise, grab your ME region and extract this in your homedir https://pbx.sh/config_spt_lp.tar.gz
You will also need the AFS_region_400K.bin file which is a resource in Intel's Flash Image Tool
The constants in this repo are set for firmware 11.0.1205, but adapting them should be easy once I publish my writeup.
This image will not boot, but it will enable debugging.