Good luck and I hope you get the birth you want.
I had no choice with DD1 as she was a surprise footling breech - had I of been given the choice back then I would have chosen a CS based on all the info they give you but afterwards and being through what I did, I 100% support women having vaginal breech births.
ALL births are risky in their own right, ALL births can go right or wrong - as long as you are educated, know the risks and know what YOU want then I can't see why you can't attempt it... just remember though should you have to have a CS there is nothing wrong with that either.