Letters blown by wind

I am trying to create an animation of letters being blown by wind. I have a statement, and pieces of the statement blow in and settle to read it, and then blow out, and then the next part comes in, etc. I’ve created an animation using motion guides to do it, but the text is probably going to be update quite a bit so I was looking for some that would make the process a little faster. I there a tutorial or something out there that could point me in the right direction. I haven’t been able to find anything.

I’ve attached the sample using motion guides to better show what I mean.