1. There is no way that CFS can't be considered a starter. I think at this stage it's likely he will play early rounds on the wing.
2. Lets not kid ourselves, if ant Fainga'a wasn't absolutely 100% ready to go he wouldn't be considered for selection. I don't buy this "he's on the comeback trail he starts from the bench" business. He's either fine, and can be considered to start or is no good and should take however much time he needs to get right. All talk is that he is fine, so in my opinion should assume his mantle at 13. The role he plays there for the reds is particularly important.
3. I'll be honest, my opinion of turner at fullback is mixed, his kicking game actually really impressed me in the final trial but I have had nightmares about the easy cover tackle he missed that led to the Rebels easiest try, his counter-attack play was ok but nothing exceptional. Toua and Taulagi both showed more counter-attacking sizzle in 10 and 5 mins respectively than turner did in 40. If toua is healthy, I think he gets first crack, he has earned it. Turner, davies and shipperley all have about equal runs on the board at the reds at the moment (all things considered). 1 of them starts at 14, one on the bench, one misses out.
I suppose we should then consider, how do the brumbies play and what areas of the game can we press our advantage?
They will scrum strongly, compete ferociously at the breakdown and be aggressive in D. On attack you'd expect them to play wider and try use their now good back 3 (plus kuridrani) to take the reds on with power/pace at the edges.
The reds will need to try achieve parity at scrum time and really try beat the brums at their own game around the breakdown. Then they will need to play with extreme speed and accuracy in the offload, because our backs are probably not going to make a lot of breaks through the middle (10-13 for the brums will all be excellent defenders). The reds would also do well to attack the brumbies lineout.
Al things considered, I reckon that leaves us with
1. Holmes
2. Saia
3. Slipper
4. Simmons
5. Horwill (c)
6. Quirk
7. Gill
8. Schatz
9. Genia
10. Cooper
11. CFS
12. Harris
13. Ant
14. Turner
15. Toua
16. Hanson
17. Daley
18. Anae or Owen
19. O-donoghue
20. McDuling
21. Lucas
22. Tapuai
23. Shipperley