To answer your point 2, your GP is talking codswallop - a breech baby doesn't have to be delivered by CS at all, as long as you have access to MWs competent in breech birth. NICE guidelines do recommend a CS for breech but mainly because there is a shortage of MWs with breech skills - but that doesn't mean those skills don't still exist.
DD was my first, breech, and born at home with IMs. I had the best labour of anyone I know, even though she was 9lb 12 - breech birth isn't necessarily any more painful than cephalic.
Try and get hold of a copy of "Breech Birth" by Benna Waites and/or "Breech Birth: What are my options" by Jane Evans. I found them both to be far more informative and balanced than pretty well anything I got from MW, GP or the consultant's team. The Benna Waites book also has a chapter on complementary methods of encouraging your baby to turn. IIRC none of these (accupuncture, moxibustion, Webster Technique, OFP stuff) have been known to encourage a head-down baby to turn breech.
Googling Mary Cronk is also a very worthwhile exercise.
Mary's basic starting point is that you don't muck around with a breech birth: the pregnancy should be normal and term and labour should start completely spontaneously and progress totally naturaly. If any of those criteria are not met then this isn't a good candidate for a vaginal birth and a CS is probably indicated - she would never induce or augment a breech.
If you do want to look into vaginal breech birth, start by getting crystal clear on the distinction between a vaginal breech birth (hands-off) and a vaginal breech delivery (hands on and fairly medicalised). From my experience of talking to consultants, you need to know what you want as they will use the terms interchangeably. You might also want to dig out the "Term Breech Trial" by Hannah et al, which was published in The Lancet in 2000 (if you sign up you can access the paper in full for free) - this caused a massive change in the way breech babies were delivered across the world and, even though the paper has since been widely discredited, it is still often quoted as the reason why a CS is recommended for a breech baby.
Whether or not you want to start trying to get your baby to turn now and how active you want to be is a very personal decision. Chances are your baby will turn by itself - something like 20% of babies are breech at 30 weeks, and < 5% are still that way at term (of which a dispraportionate amount are 1st babies). That said, the sooner you start trying the more space the baby will have.
Most of all, try not to stress. The baby will almost certainly turn, and even if it doesn't you don't HAVE to have a CS.