I'd first think about getting the silver dollars to 6 and the clown loaches to 5.
The silver dollars are shoaling fish and should ideally be in larger numbers. 10 would be nice, but I understand it might be a bit much, but I'd say 6 is the bare minimum.
Clown loaches are highly social fish and form numerous communities. They too should preferably be 10, but 5 should do it.
Once you've fixed these numbers you can think what else to stock.