Any Chance For A 90M Guild Completing Heroic?

^ this. total GP isn't necessarily the best gauge of of whether you can complete heroic STR. Rather, you should evaluate the team compositions of everyone in the guild. If everyone has invested in 4 G12 7* squads with really high mods, but the rest of their characters are G8, then you could potentially clear heroic with a lower total Guild GP.

If STR is your primary focus, then it would be important to get your guild to specialize in the characters that can post high damage. 50 members with a JTR, BB8, Hyoda, and a handful of other supporting characters (e.g., Death Trooper) it is possible that your guild GP is low(relative to others clearing it), but your effectiveness in the raid is high.