Ok - as "Fildor" noted - CS-Script works really well.
I downloaded the nuget package - played with it - and within 45 minutes had a sample test program that will do exactly what I want it to.
CS-Script is surprisingly powerful and easy to use. Well - now i have a Lot of reading to do on it - to get it fully ready for what I want to do. Thank you to Fildor for confirming that it should work!