NOT trying to troll here but if you weren't so sure about your own SOP then why did you apply to such a competitive school in the first place? It is, after all, a reflection of the abilities that are "hidden" from the rest of the application (of course, hidden doesn't mean they don't exist). Writing an SOP is one of the most basic yet most critical things you do when applying to grad school, and I just don't get it when people ask other people for their SOP's like it's gonna inspire them or something. The only explanation that makes sense to me is that they will somehow plagiarize it (sorry dude, I'm sure you're a great student and all as you applied to MIT, but this is what comes to my mind).
What worked for someone else will not necessarily work for you.
My advice is to have someone critique your own SOP instead of asking others for a copy of theirs. There are almost too many guidelines on the do's and don'ts that you will find helpful.