Oooh, these are good ones. Cosmetic stuff with a shelf life is great for riln-sinking.
And yeah, long-distance deliveries might need a little tweaking, whether it's lower payout or increased cooldown between tasks. They're good for getting people to learn where other outposts are, but they're probably a little too good for making money/experience considering, as mentioned, they involve literally no skill and virtually no risk, even if lore-wise traveling outside town is considered very scary and dangerous in the Lost Lands. Hmm, that last part makes me think maybe keep the good pay because it's ICly quite difficult to find couriers willing to risk the Lost Lands roads, so the payout -should- be pretty good, and just make the cooldown period longer in order to tone down how effective they are in the effortless experience/riln meta.