With that size of system, I don't know why he would not have spec'd an XP-8 to begin with. Just on looks alone, the XP8 is rack size while the XP6 is not, not to mention all the I/O advantages.
Maybe he is the best IP programmer out there :) (surely I am not)
"There's a big difference between winging it and seeing what happens. Now let's see what happens." ~MacGruber