Sunwar Rai may have a few Newar loans:
Sunwar šaːr ‘horse’ | Newar Kath. sălă, Dol. sără
Sunwar gaːr ‘wound’ | Newar Kath. gʰaː (gʰală-), Dol. gar | Thangmi gare
For the latter, we also get Thulung, Kulung kʰer, Dumi kar, &c. The ‘wound’ word may be an old Indo-Aryan loan: Skt. gʰāta- > MIA gʰāða-
Sāmapriyavasuḣ
Figured out a few sound-changes between Newar and nearby Nepalese Tibeto-Burman languages, and possibly some morphology.
Thing is that there appears to be very few that have looked at these languages from a comparative perspective. ST-ists like Jacques are looking at Kiranti in detail, so, ...