First thing you need to do is speak to your mw.
You may be able to get a CS on the NHS if you explain your fears and worries.
However, even when booked in for an EL CS, you may still go into labour beforehand, so this will not necessarily work, so I suggest speaking to someone about some form of counselling to enable you to feel able to cope with a VB if you do have one.
It sounds like your epidural didn't actually work very well, so that is something you need to discuss.
Your mw may say no you can't have a CS, if she does, ask to be referred to a consultant at the hospital, that is who decides, not the mw.
Ultimately, it is your body and your baby so what you decide should be listened to.
As another poster said though, there is often a lot of pain after a CS so it isn't that you would be without pain, it just comes afterwards with the healing rather than during the labour.