Oracle Applications 11.0.3 to 11.5.10.2 Upgrade

For the past one week we are working in a Oracle Applications 11.0.3 to 11.5.10.2 Upgrade. We are currently in testing phase. So for testing we have taken the copy of 11.0.3 instance and cloned in another machine. And then upgrading the database to 9.2.0.8 and applications to 11.5.10.2.

The current techstack of the 11.0.3 Instance is,
i) Oracle Database 8.1.7.4
ii) Oracle Applications 11.0.3
iii) Oracle Forms and Reports 4i
iv) Oracle Discoverer 3i

After upgrade the techstack will be,
i) Oracle Database 9.2.0.8
ii) Oracle Applications 11.5.10.2 + AD.I.4 + 11i.ATG_PF.H RUP4 + 11i.FIN_PF.G
iii) Oracle Forms and Reports 6i Patchset 18
iv) Oracle Discoverer 4i

Regrading H/W, it is single node installation.
11.0.3 Production server is running Sun Solaris 5.8
The new server will be running Sun Solaris 5.10


References :-
Part No. A96530-02 Oracle9i Database MigrationRelease 2 (9.2)
Part No. B19297-01 Upgrading Oracle Applications Release 11i (11.5.10.2)
Note:216550.1 Oracle Applications Release 11i with Oracle9i Release 2 (9.2.0.8)
Note:139516.1 Using Discoverer 4i with Oracle Applications 11i