For the 2008 rig, if you readjust geometry bones, all you need to do is re-export the model from an action to realign the control rig (following the instructions for exporting as you would have from the original installation).
I could trim down quite a few bones in the rig, but you would lose a few feature and it wouldn't really make the installation any easier.
I don't know how much easier I could make installing the rig. You position half the geometry bones, use the mirrorbones plugin to mirror the left side bones and weights, then export from action to position the control rig.