I agree with the others. At this point in the game, you should probably be more worried about rounding out your roster rather than going all in on GG nuke team. By all means, continue to farm GG, but focus your materials and mods on what you already have going for you. I just glanced at your roster and it looks like you've got a good start on Phoenix and First Order. If I were you, I'd gear First Order more so you can rank up higher in arena. Maybe consider dropping a zeta on KRU.
GG's nuke team was pretty much concocted to counter Darth Revan/Malak teams, it's not super ideal early to mid game where you won't see these teams. The main reason it's so successful is because T3M4's combat logic upgrade zeta provides 8% Crit Dmg per debuff on the enemy. Darth Revan led teams debuff themselves with Ferocity, so the nuke team turns that against them in a huge way.
By all means, play how you want to play, but my advice would be to worry about rounding out your roster more before focusing on these niche teams that were made for very specific purposes.