There are a few options already there for run to improve their physical survivability (mostly from SJ+gear+food combos). With rabbit pie, reasonably good gear, emboldened protect, and /blu for the extra 10 defense trait and cocoon for a 50% bonus, run could reach over 1k defense. Or you could sub ninja and gear towards evasion instead. I recommend against /sam because of it screwing with your ability to spam flash and other spells that help keep you alive.

That said, the job does still have a ways to go. These changes will do us a lot of good. Once the dust settles a bit, we'll see how far behind run is from the other jobs, then hopefully make even more adjustments.