I would love to but my Slavic is not that great. Anyone else care to try? I can read it and understand but not well enough to translate into another lanquage.
The "Prologue from Ochrid" by St. Bishop Nikolai Velimirovic of Zicha and America includes a short "Vita" of St. Dmitri Rostovsky for his feastday, but no Tropar or Kondak. If I remember, I'll check the Great Horologion (Holy Transfiguration Monastery, Brookline-Boston, MA) kept in the choir when I'm in church this coming Saturday evening to see if a Troparion and Kontakion for St. Dmitri of Rostov's feastday is included there.
At least I can tell that both the Tropar and Kondak for St. Dmitri are in Tone 8 from your post, Dmitri!