CS5, instaup2date & firstboot

Hi all, I'm new to InstaDMG, as have started a new job. But previously used Casper Suite. I'm trying to create a catalog including CS5. I know instaup2date has issues with this, but will the following work? Create pkg of AAME'd CS5 which puts the cs5 pkg in /var/tmp. Install this via instaup2date Firstboot script then installs the pkg. This is similar to the Casper suites workflow.