I assumed as much, but even if you don't need the info, someone else stumbling through the thread might find it useful.
Regarding the vacuum hopper and XP...Openblocks turns the XP orbs into liquid XP. You can pipe this into a tank, then right-click the tank to get it out and raise your players XP level. There's a few more blocks to make use of it, but they're disabled in AgSkies. MFR turns the orbs into Mob Essence via a sewer, which is used for auto-spawners/enchanters, and to give a night-vision buff.
Again, assuming you knew that. If you're using the vacuum hopper for mob item drops, it'll pick up orbs until it's full, then you can use a sewer to collect everything else. Although it is nice to have a convenient way to walk up and quickly level when you want to copy a book, apply it to a tool, etc.