Upgrade Solaris 11.1 to 11.3 with sun cluster 4.3

Hi all,

I need to upgrade Solaris 11.1 SRU 17.5  with Cluster 4.1 SRU 6.2 --> Solaris 11.3 SRU 13.4.0 and Cluster 4.3 SRU 5.3.1, inside I have zone not clusterd my questions are:

1) I must create one repo Solaris with SRU?

2) two repo Cluster (4.3 and 4.3 + SRU)

3) scinstall -u update command, does create new environment and updates with new Solaris and new Cluster version?

4) When I set new publisher for ha-cluster , which flag can I use, -g for both of them (cluster 4.3-ga, and cluster 4.3-SRU)?

5) scinstall -u updates does create also new boot environment for zone, it's correct to let them up during the upgrade?

Thanks in advance