I would be tempted to take my two alts, both of which can solo HAAT and Pit, maybe put a low level ticket generator in there, collect top 3 rewards for all three accounts at max raid frequency and reap the gear, currency and shard benefits, while giving ticket mule 7* Han and 7* GK to abuse whenever he decided to pop into squad arena (or bounce him before then and replace with another ticket mule).
You might counter and then say "well, you need at least 25 members", to which I would then use your own argument to counter your own point.
Guilds are 50 people. That's the design of the game. There are many many guilds that are looking for players. There are many midsize guilds that could merge into full guilds.