If it's not painfully obvious, these are not "official" carbon builds. This device is not officially supported by any ROM. As stated in the OP these builds are available at my blog:
I went over to your website and downloaded all the roms on there for the sgh-t599. I tried flashing each one in secession, but one after the other, they all failed with the same error. I have twrp recovery on the phone to flash the zips and- for the below error- I was using trying to flash carbon 5.1.1.
Formatting System.. Mounting System... Installing System... assert failed: run_program("/tmp/blobinstaller.sh") == 0 E: Error executing updater binary in zip '/external_sd/CARBON-5.1.1-METICULUS-20160728-0825-codinalte.zip' Updating partition details...