It always seemed like a really fun concept, honestly.

Also, don't know if you're aware of it, but... There was a parody sentai made not long ago called Akibaranger, and in the second season they included as one of the monsters the new [i]third[/i] member of what became the Thunder Rangers. [url=http://static1.wikia.nocookie.net/__cb20130519133260/powerrangers/images/2/2a/Tento-raiger.png]Here she is[/url]. Not saying you should use it or anything, just something to keep in mind depending on how many people want to join I guess. XD