if you still have a RM pc untouched and working then DL and run Device driver backup, restoration, update and removal software for Windows, drivers backup, backup drivers
it will get all the drivers from that pc then you can use nlite to add them to the drivers.cab
i have done all the PCs in our school and have a DVD that boots install OS and the base software.
Office
Adobe
etc...
if you want more info.. go to MSFN's Unattended Windows : Unattended Windows Introduction it will tell you how to tweak your install..