I looked at it some more...
My initial problem was that our network never pulled Superdats unless it contained an engine update. So I was wrong there.
However, since a eng+dat superdat is almost 4.5 mb, and a dat-only superdat is 1.7 mb, it is more efficient/faster to use the dat only version.
Eng-only dats are available(about 3mb), but as the engine is rarely changed, every few months usually, those could be pushed when/where necessary.
I've updated my Kixtart page with links to this file (and Inquisitor)
