I had an ECV done with my last child at 38 weeks. And yes, everything you read about it is correct. It most certainly is an aggressive procedure and not worth doing, IMO, if you've tried every single other method to get baby to turn. My baby came out bruised, and my own belly was bruised. I had a c-section. I wouldn't go through the procedure again if you paid me. All I can say is that having your belly squished on and manipulated in that manner hurt much worse than giving birth.
I would go with all of those other techniques your o.b. recommended and also definitely try finding a chiro who is certified in doing the Webster technique. I believe you can find one through I.C.P.A or something. (Sorry, no link.)
Finally, know that some babies are meant to be in the position for whatever reason and some babies will not turn no matter what you do. If I were in that situation again, I would birth the baby vaginally anyway. If my ob weren't supportive of this, I would change to someone (midwife?) who was. It's worth it when you consider the alternative of having a c-section.
Good luck, mama.