I recommend @Static_ for LUA Scripting and Source Editing very professional, kind and polite very very patient when he comes to teaching ( he was with retarded me) last but not least he is very trustworthy and really talented =D
I've worked with @Joe Rod several times, and I've always had good results.
I have currently worked with @pasiak12 . Helped me with an unusual (in .lua) system in which many did not accept the job because it was something that flees somewhat from the standard.
And for sure, I recommend @Sarah Wesker for scripts (.lua). It has helped me a lot, and of all the members was that showed more patient and did not show distrust of me for being Brazilian (What happens to lot here, but I prefer not to comment on).