SSA Scripting Question

Quick question regarding SSA Scripting in WinPE.

I work in a lab environment where I have a certain model of an unconfigured server coming in with different hard drive configurations... Up to as many as 20 configurations per model... DL380, 580, BL460 Gen9. 

I have created script files for SSA scripting to create a standard configuration... 2 disks in a RAID1 and the rest in a RAID5. 

I want to create a universal SSA scripting file that'll look for two smaller sized hard drives on the controller and put those in a RAID1 (independent of box:bay:port), and the rest of the HDD's put in a generic RAID5.

Sometimes the servers come in with different physical drive installations but the sizes are similar.. My script that i have no points to a box:bay and doesn't always put the 2 smallest HDD's in the RAID1.