Both Rotting Hearts and Spinal Dust are quests that can be completed by buying unbound drops; I didn't know this until I saw them in the auction house under "quest items". Very little XP by now, but still, it's the principle.
It looks like Reinisch will hit the Midsummer Fire Festival at level 49, just like Noor did last year, which should help boost him to level 60 or so soon after. Assuming Reinisch has the same success/failure with faction friendliness (he also won't be able to get to Hellfire Fortifications), he'll be able to do Spirits of Auchindoun as a daily starting at level 62 (not 63 as wowhead.com claims). The Dalaran cooking daily should start at level 65, and at level 70 lots will open up