This script is going well but i have noticed one problem. I am running a launch daemon to run the script every hour but i can see through some logs that it is also searching through network volumes as well.

the name of local disks are all different and upper case. I have found scutil --get ComputerName outputs the computer name correctly in the correct upper case but i am unsure how to pass this on to the find command.

If anyone can help this would be great.

got it working
 

I found i have to use the -mount to search the local disk only as i have found that some machines are kernel panicking.

So the command is find -x / -mount -iname '*.app' -group 513
:D

I still don't see why you don't use local MCX?