I have not heard of or seen anything about any mods that would allow you to take items from protected farms, I feel like that'd be a dumb idea anyway and a quick way to get banned. Also unaware of any GCD removal mods and I believe HAGS is the only semi-public release that does anything w/packet editing at the moment.
There is a diffence between Mos and Hacks,
Mods are Client side Effects, so Menus and some Graphical Stuff you can change, but interactions that would require Server interaction can not be changed with a mod for the most part.