I've been looking around for material we can use in our presentation. Here are some sources that I found helpful and potentially useful.
Sumarokov's Russianized "Hamlet": Texts and Contexts:
Boileau and Sumarokov. The Manifesto of Russian Classicism:
I found a book, literally "A History of Russian Theatre" but apparently the library reports that it is lost..... Right!?!?
Hope some of this information will prove useful!