No you can totally get those. It’s not very performant and there are better ways than this but it’s better than doing the same thing every Tick instead of being event driven 
What you can do is use the GetAllActorsOfClass node, loop through the array it returns until you find the actor you want, then grab its Static mesh. Then the trick is knowing which one of those actors is the right one. You’ll have to identify it uniquely using its playercontroller or a Tag or a variable that is always set to something different, or something.
It’s not the best way to do things but it works.