remove all the legacy phonetics (since we'll handle phonetics search differently)
remove all the English translations of person names
Use culturally appropriate prefLabels, for instance let's have only a Tibetan prefLabel for Tibetans (not Chinese or English), and an English, Sanskrit or Chinese prefLabel for others. Some exceptions will be Indian masters who can have Sanskrit + Tibetan + Chinese prefLabels
convert all the ala-lc transliterated labels into Wylie, and remove duplicates
To improve UX, I propose do the following
This will require a lot of manual review