I had an emergency cesarean at 26+6, ds2 is 3 now and fit as a fiddle.
I completely understand your fear and I'm so sorry you are going through this op. I don't know whether you've gone in yet, or whether somebody might check this for you today or tomorrow. Just in case though...
First of all, the epidural. I had gas and air for my 1st cesarean and didn't feel a single thing. The only downside I'm told, is the possibility of you moving at the wrong time - because you can't feel anything, they think you might not take it seriously enough. A bit condescending if you ask me. If you want gas and air, tell them. Nobody is going to deny you a bit of gas and air at a time like this.
For my 3rd cesearean I didn't have anything, she had a bit of difficulty setting it properly so it took a few goes, and it was a bit uncomfortable. Not painful, but a strange sensation that made my eye's water a bit. Like I said though - I definitely would not describe it as painful.
As far as stuff for the baby goes. They'll have everything you need in the NICU. Your lo won't be wearing clothes until he's out of the incubator and into a cot, which gives you weeks at least before you have to worry about that. Even then, they'll have clothes there for you to use, and you won't be the only one, nobody goes into a pregnancy buying premature baby clothes. Otherwise, they'll have nappies and cotton wool, although they'll expect you to bring some in after a while. They sell tiny nappies in mothercare and asda. When he's in a cot (like I said, probably weeks away) you can bring in your own sheets and blankets if you want.
They have electric breast pumps in the hospital. Ask for one when you feel up to it. Obviously you'll hardly get anything at all, but they will freeze the drops that you give them and when your lo is mature enough to have it (may be straight away, may be in a couple of days) they'll defrost it and he'll get your colostrum. Remember that at your lo's age the milk he needs will fit into a syringe, so don't worry about quantities just yet. If you don't want to do this, then they'll have formula milk there for him. Nobody in the NICU I was on ever brought their own.
Once he's born, they will probably just whisk him away immediately to set him up in an incubator and take him to the NICU. They wheeled me down on my bed to see mine the same night. Once your epidural has worn off and they've removed your catheter you can go down and see him. Some of the nurses in the hospitals I was in didn't like you taking baby out of the incubator, but in almost every case it is beneficial for you and your lo to have skin to skin. You can do this even with all the wires. It can be awkward and, was for me, terribly frightening, but massively worth it. If there is some real reason that you can't, you can lay your hands on him. Prem babies like it if you place your whole hand gently but firmly on their bodies and leave them there, keeping still. They don't like being stroked. You can watch the nurses change his nappy and giving him a little wash in his incubator, then you can do these things yourself when you feel ready.
He will look incredibly tiny and fragile, but he will grow and get stronger. Sometimes it's hard to see it at the time.
I hope you are okay op. I'll keep coming on to check. PM me if you like.
xx