Bringing this thread back from the dead a bit..
I setup my office install as listed 2 posts above, and I'm using it via UDI install. The office package will load, however, it doesn't send the "done" flag ever, so basically, it loads in 10-15 minutes, then sits waiting for the 40 minute timeout before proceeding completing the build. Then upon completion, I have an exclamation point on the Office installer. It does work properly, just takes longer. I've love to get this figured out... Not sure why it wouldn't be sending the "done" flag with success back to SCCM.
I'm building a machine right now with the package on it, I'll post up the details from the log, but the last time I saw it, it just said "package timed out" or something similar.