Chances are they will all want to roost(sleep) in one coop,
despite the fact that they are both way too small,
they like to stay together.
Even if you put the coop(enclosed) portions together to form one space with roosts,
it may still be too small for the 5 birds you have.
Crowding can lead to disastrous behavioral issues.
Ventilation is an issue also.
What is your climate/location?
Sorry to be a debbydowner...but better to remedy the situation before they get any bigger and/or winter hits, if you live where there is harsh winter weather.