I can't see your diagram at work, but I'm assuming it's this one:
2 (hard plastic, but mine broke during removal), 5, 6, 10, 13, 15, and all the clamps connecting them. It also depends if you have 6 or 6a. You'll have to check to see which you have.
2-06A103213F
5-06A103247
6-035103245G
10-06B103224C
13-06B103221H
15-06A129101A
Probably 19 and 20 from this page.
19-058133753B
20-06B133783AT

2 (hard plastic, but mine broke during removal), 5, 6, 10, 13, 15, and all the clamps connecting them. It also depends if you have 6 or 6a. You'll have to check to see which you have.
2-06A103213F
5-06A103247
6-035103245G
10-06B103224C
13-06B103221H
15-06A129101A

Probably 19 and 20 from this page.
19-058133753B
20-06B133783AT