I was looking at doing this awhile back by improving Kopilua (which had looked to be abandoned, and now seems to have a little bit of activity again):

https://github.com/NLua/KopiLua

However, other projects came up.

My interest was in a c# implementation of Lua where scripts would run in a cross-platform manner. I'm not sure the "addititions"/"modifications" in Moon# will meet those needs. If I return to said project, I will definitely take a look.