Okay, here's some thoughts. I've tried to cut them down for you but I think you might have to go wide in a couple of races. I have NO IDEA about Scone R7, while Sale R7 is very open as well. The ones in bold are the ones I'm keenest on.

Rockhampton
R5: 2-1-3-6
R6: 6-2-7-8-3
R7: 1-3-6-13
R8: 1-3-7-2

Scone
R5: 4-2-5-1
R6: 2-7-1-3
R7: 1-6-4-2-10
R8: 1-5-4-8-7

Sale
R6: 4-5-2
R7: 5-4-6-1-10-7
R8: 5-2-4
R9: 2-9-6

As far as bankers go, perhaps Rock R6-6, Scone R6-2 & Sale R6-4.