Might look into the Seek Outside Little Bug out Shelters...very modular and no one in the group is stuck shelling out all the money for it.
This advice right here. ^^^
Kinda went against my normal procedure and was an early adopter of the LBO. I've been super happy with it. Fits our family of 4, some gear and a stove- in the Base+Tarp+Base configuration. Makes a bomber 2 man in the Base+3panel and a very spacious solo shelter in the Base+any vestibule...
It's not standup capable though, if that's a important consideration for your group.