3D animator needed to make trees/plants move a little

I've a 3D scene done in 3DS Max + Vray that has quite a bit of trees and plants in it. The plants/trees are filled throughout the scene with iToo's ForestPack Lite and RailClone Lite. I need someone who can make these plants move a little. Nothing fancy, just super basic subtle movements.

See these samples:

https://www.youtube.com/watch?v=xT9gWrtsgTU
https://www.youtube.com/watch?v=eIwpKh4oEcY&t=1846s

It'll be a seamless loop animation, so the actual animation for each loop is probably only 2 - 3 seconds.