Use a provisioning task.
You can create each of those tasks separately, then create a task to join them.
Now I am wondering if the provisioning agent needs to be added while thawed?
Any other way without using provisioning because we don't have that license....
which LANDesk version do you have?
Since 8.7 SP5 (?) or SP6 provisioning is included... or do you mean Windows PE license?
P.S.: thawed = melted snow or ice???