Help/suggestions needed

She has already seen a vet. I am hoping someone may have some ideas of natural or home remedies that could help our little doe.
We already lost her sister, probably to pneumonia, and do not want to lose her. We have a small family farm with limited resources. We love our goats but will not pay more than the whole herd is worth to save one baby. I do not want to come across as uncaring and I know most of you know we care deeply. But they are livestock, not pets; and we will not spend any amount to save one kid.

Snow White was doing fine leaping about and starting to hold her own running with the herd. She is 4 weeks old, weighs 12 pounds and is dam raised. She has had selenium and VitE since birth. She is only nibbling grass and hay and has not had any grain or anything.

On Monday we noticed she was a bit stiff and congested. Her temp was 104.5. We called around but it was late in the afternoon and no vets that see goats were even available; so, we were on our own to get her through the night. All we had was expired PenG and expired B1 but, out of desperation, we administered that. She made it through the night and in the morning her temp was 103.2. She was still nursing and peeing. We were able to get an appointment with a vet over half an hour away (so stressful car ride for a sick baby) and since we were wanting to establish a relationship to get meds to have on hand anyway, we took her.

The woman was totally unwilling to give us anything to take home and told us that any sick goats had to be brought in. So, $157 later she had been given a shot of Banamine IV and an injection of Nuflor. She said it was an upper respiratory infection and not pneumonia yet. We were told if she was not better by Friday to bring her back in. (To the tune of another $157. Or more.) That would just about exceed the value of this whole herd.

Yesterday we were cautiously optimistic as she seemed to be improving. Today she seems less steady on her feet, is doing more star gazing, and is stiffer in the hind legs. She is holding steady at 12 pounds and is nursing, nibbling and peeing. Only small bits of poop. She is laying around more rather than following Mom. Her temp is 103. I am trying to answer the questions that I know you all will ask.

We bought her mother pregnant from a questionable herd but had hoped to help them improve. They were definitely mineral deficient but they have been given SelE and a mineral block and have had loose minerals for over a week now. The mama with babies that were born there are doing fine.

The vet did not ask us any questions about her and seemed annoyed when we offered any information like we were supposed to shut up and let her do her job. She was very young.

We even called around to other vets but there is only 1 who sees goats and she is booked 2 weeks out for new clients. So I do not know if we will ever get to establish a working relationship with one and will be totally on our own again with no access to drugs anymore.

If anyone within a hundred miles or so from Central San Joaquin Valley has a vet that works with them we would be willing to make a couple of hour drive just to get someone to prescribe for us. At this point, a goat who gets sick after hours or on the weekend is a dead goat.

Thank you all so much in advance for reading this long post even if it turns out there is nothing more we can do at this point.