Revive sourdough starter after 2 months in fridge
Yes, many of us (me included) have brought long-forgotten starters back to life.

Just take a small portion, feed as usual and see what happens. It will likely take a bit longer than usual to start bubbling, perhaps even a day or so, but if your yeast and bacteria are alive, they will be active at some point. 

I do recommend you baby your starter a bit before baking, a few feed cycles help to get its full activity back.

Spelt flour is not an issue, it behaves quite like wheat. I have used both wheat and rye in the past.

Good luck!