FYI: the anchor at the top of the final splitter corner is marginal. As of two days ago it consisted of a single good bolt, a rusty quarter incher and two modern, high diameter bolts both protruding significantly from the rock. Not a death anchor, but far from up to standard for such a classic route. For that matter, the anchor above the crux pitch is also poor, though it can be easily backed up with tight hands sized gear.
I think this route is one-anchor-short of being rappable with a 70m. How about adding an anchor on the first rap (not on the climbing route) before worrying about a 4-bolt anchor.
I know it's possible to keep climbing, top out, and rap CC. That's usually asking for a cluster.