A drill seriously wouldn't be a bad idea up there...
I'm not talking Grose valleyesque bolted classics, derinately not, keep it long loose and natural in my books!
But some (most) of the bolted anchors on the harder routes up there are in dire need of replacement. i.e. the single carrot anchor on Ginsburg that is sticking 3 inches out of the rock and is bent down at nearly 90degrees. Haven't been up on it yet, but I'm sure all the bolts (if you can find them) on Crucifixion are rusted stumps.
Kudos to Sydney Rockies for rebolting the most used rap anchors a few years ago!
Also, you wouldn't be the first to put bolted routes up there anyway. If you climb straight out the top of Caucusus Corner there is a line of hangers (prob 7 or 8) that go through the overhung choss at the top!