Get the numbers for the SMB Build and contact them for any info that is still available; find out if there are historical records that indicate exactly what was done.
Make sure to check back with the former owner, she may eventually find any manuals; and, not just for those, but because it's a human thing to do, to let her know how excited you are and thankful that she has been the mechanism to send you off into this new world...
Have fun, pay attention on here there is a super computers worth of knowledge and experience on board.