Sweety alot of the time the induced labour is the problem in itself. Maybe you could just choose not to be induced this time. Remember that pregnancy is meant to be around 40 weeks. Of course it's totally up to you.
Tehya was my VBAC after having a c section with Noah and I was so determined to have it, and to have it my way that I had a homebirth. I realise this isn't an option for everyone though.

I wish you every bit of luck huni, and I really do hope that you get the birth that you want.

Oh yeah dosage, well I never used them that frequently internally, like I said, I only used 3 every night internally and I would take 2 orally in the morning. HTH.

Just have believe in yourself and your body, getting your mind around it all is the first big step to a better labour and birth. Even if that birth is a c section.