Previous Quests had RPGItems support (and quite a bit of code still appears to remain), but was later removed by Pika as a result of another bug I had reported, due to RPGItems having been unmaintained at that point.

RPGItems is BACK though! It is being maintained by a good group of folks from the NyaaCat community:
https://github.com/NyaaCat/RPGitems-reloaded

My server relies almost exclusively on RPGItems and Quests. Since losing the support in Quests, we've had many issues with getting deliveries to properly recognize items due to some small hiccups with how RPGItems can alter metadata. I'm hoping with direct support for an item, we won't need to utilize the "Use Item In Hand" option, thus eliminating a number of the issues we tend to have.

Alternatively, if the desire to add the code back into Quests, at the very least could an "Quests Plugin" to re-add RPGItems support be offered?

Thanks you!