Again you have very bad historical knowledge.
Actually Russia and Dzungars were very friendly. And even if Russians wanted to conquer Dzungaria they can't dedicate enough troops and logistic will be impossible.
Russia need to conquer Kazakhs before even to think about Dzungaria and Mongolia. And there is Central Asia, Khiva, Kokand and Buhkhara which is weaker than Dzungars.
First Kazakhs to take an oath of allegiance (not conquest by Russia) to Russia was Little Juz in 1731 (in 18th century), who wanted defense against Dzungars. And Middle Juz even not accepted allegiance to Russian throne till 1800 (19th century). Kazakh resistance lasted till 1847 when Kenesary, last Kazakh Khan died that year. So Russians hand is full with managing Kazakhs until first half of 19th century. Now later half of 19th century Russians might want to expand. Therefore I suggested selling or if not possible just give Outer Manchuria to Russia. Dzungars even can hand hand them and East Turkestan. Then can become semi-protectorate of Russian Empire.
1. This is Dzungaria wank scenario, so there is no collapse of Dzungaria.
2. Dzungarians also used cannon.
Johan Gustaf Renat helped organize Dzungarian military and especially artillery regiment.
The resistance against Russian incursion will be far greater than Qing put against Russia. So no, Russia has zero chance winning against Dzungaria til last half of 19th century.