good luck with your decision
ultimately its your body and you do what you feel comfortable with the most!!
There is heaps of reseach out there to point you or sway you, and there are plenty of VBAC stories and attempted VBAC stories as well! Read them for a different perspective, but its your story and you write it the way you want it to go!!!!

FWIW I had a VBAC and it was awesome, but I think what helped it go so well was that I was 100% behind it, and circumstances allowed it to go the way I wanted it too.
Whether its through the sunroof or out the boot- as long as bubs and you are fine- that is what matters in the end!!
good luck