Be very careful and make sure you are ready to make a quick move to separate them if necessary.
The five month old poults are at an age that you cannot really predict what they will do. If it was me, I would probably put the 5 month old ones in with the adults.
The 7 week old poults would probably be safer with the adults than with the 5 month old ones. The 5 month old ones are somewhat like teenagers.
Of course it matters whether we are talking about heritage turkeys or broad breasted turkeys. The broad breasted turkeys tend to be more mellow in their temperament and behavior than are the heritage turkeys.