Looks like you have a good starting point for your stocking
I would go
5 labs with 1or 2 males the rest females but not really important
3 or 4 socolofi 1 male the rest female
some bottom fish either synos and or bristle nose
You could add another species as well maybe some type of afra these stay small about 3".
If your adding juvies i would not worry about stocking order just move the tank around a bit before they go in but generally add the more aggressive first.
You could try and get some synodontis njsasse these are the native catfish from lake malawi
I would go
5 labs with 1or 2 males the rest females but not really important
3 or 4 socolofi 1 male the rest female
some bottom fish either synos and or bristle nose
You could add another species as well maybe some type of afra these stay small about 3".
If your adding juvies i would not worry about stocking order just move the tank around a bit before they go in but generally add the more aggressive first.
You could try and get some synodontis njsasse these are the native catfish from lake malawi