SleepDebt

I'm running Mojave with toolkit 2.9.2.1 and the 4.0 mono. I verified mono installed HOWEVER it wants me to have a newer version which didn't work the first go around and why i downgraded to the 4.0. ( i followed the uninstall - reboot- install - verify) I can go into rocksmith via steam and find my dlc. How do I appropriately back this up and delete all the files, so i can reinstall rocksmith. Why won't toolkit work with mono working? Also i did go into the patch and make sure everything says read and write. What am i missing?