Don't do it... don't do it... don't do it. There is a reason that so many docs won't even attempt the VBACs. I know that it is a pet idea of many "feminists" out there to advocate for "all natural all the time" and the "anti-c-section" groups out there that just don't understand, no offense. I have a cousin who has been a NICU nurse for 2 decades and has seen first hand tragic outcomes of VBAC (about 10 years ago, that is, when docs were still performing them). My hubby is also a nurse who wouldn't just strongly advise against it, he'd actually intervene if a loved one were to try VBAC... I don't mean to offend anyone, but having so much of my family in the medical field, I have heard first-hand convincing evidence as to why these are so rarely performed.
Why risk it? C-sections, performed on otherwise healthy mothers who have gotten prenatal care, are far less risky that the VBAC.
Good luck... the 2nd c-section is always easier than the first, and they get easier after that, from what I hear. I've only had 2!