Some suggestions i thought of...

Given your labours are 4-5 hours now, you could distract yourself and stay home as long as possible? It usually takes them 40-120mins to prep theatre for a non-emergency c-section (i.e. and "emergency" when there is no immediate danger to anyone) so if you were ready to start pushing within an hour or so of arriving you'd avoid the section. I know someone who had a cord prolapse (so a TRUE emergency) and it still took them 28mins to get her to theatre.

Insist on epidural (rather than general) but when the aneasthatist arrives suddenly feel really sick and be unable to assume the position or keep still. Anaesthatists are busy, if you can't keep still within about 20mins or so they will arrange to come back in a bit - by which time you'll be pushing and not need them You are in labour, just insist "NOT NOW" when s/he tries to get you sitting/laying how s/he needs you.

Go to hospital in labour but take unscheduled, random "walks" in the grounds to keep things moving and so that when they come to do examinations (so they can justify the c-section) you aren't there. Leave them a note "gone for some fresh air, back in 10".

Hospitals only work because of predictability. If you are unpredictable they'll find it VERY hard to get you into theatre. They can't FORCE you, but equally by having great excuses why you can't get the epi right now, or by not being in the actual place they expect when they come to try to convince you, you'll be able to miss alot of the brow-beating too.

Try to get a doula, or a student doula if that makes it cheaper, to help you keep your humour and control of the situation, and to support you at home until you decide to go in.

HTH

Bx