If you get to the point where you need ventous or forceps its too late for a c section.
Not necessarily true. With DD1, I went to theatre for a ventouse which failed, then had an EMCS. They didn't need to push her back up, she just wasn't descending far or fast enough with the pushes.
DD2 was a VBAC delivery, I was so happy to have done it without another CS, especially since all the way through, right up until just before she came out, it felt to me like things we're going the same way as with DD1.
However, DD2 was back-to-back and I had a bad 3rd degree tear. The short term recovery was much better than for the CS, but long term was worse.
With a VBAC, they don't let you push for too long (they told me 45 minutes, I think, depending on progress).
I don't really know what to suggest for you. If you had 2 bad position babies, is it more likely that you're not the usual shape inside and might have a 3rd the same?
I absolutely understand the desire for a "normal" birth, but I think in your position I'd worry about things all going wrong again. But if you do go down that road, I'm not sure you can rule instruments out completely, I think in some cases, they are the safest option for both Mum and baby.