[dnanian]

A few things:

in #5, you partition before you format (which happens as part of the partitioning). Make sure you use "Apple Partition Map" as the Partition Scheme, since you have mostly Power PC Macs.

In #6, no need to "log into all accounts" a tall.

In #10, I don't think you can do that, because I doubt the Snap Server is formatted as HFS+.