With everyone fit and firing, you would have to go with:
1. Locke
2. Nightingale
3. Kenny-Dowall
4. Matai
5. Vatuvei
6. Marshall
7. Foran
8. Rapira
9. Heremaia (ahead of Fien on form)
10. Asotasi
11. Blair
12. Mannering
13. Smith
14. Luke
15. Pritchard
16. Matulino
17. Moimoi
Reserves: Hargreaves (prop), Harrison (backrow), McKendry (prop), Perrett (wing), Hohaia (fullback/utility), Sa'u (centre), Fien (hooker/utility), Glenn (utility forward), Beale (utility back), Nuuausala (backrow), Packer (prop), Manu (backrow), Duffie (wing), Proctor (backrow), Bromwich (prop)
Although Inu and Brown are good players, they had hard times cracking the first grade team at points throughout this year, and hence are probably behind the aforementioned players.
Then, you can strike out Kenny-Dowall, Sa'u, Nuuausala and Asotasi as they are not considered due to injury, and replace them as per required. Personally, I would keep Mannering in the forwards, and replace SKD with a like-for-like centre.
1. Locke
2. Nightingale
3. Beale (SKD/Sa'u injured)
4. Matai
5. Vatuvei
6. Marshall
7. Foran
8. Rapira
9. Heremaia
10. Hargreaves/McKendry/Packer/Manu/Bromwich (Asotasi injured)
11. Blair
12. Mannering
13. Smith
14. Luke
15. Pritchard
16. Matulino
17. Moimoi