Really sorry you feel agrieved at not receiving any feedback and so saddened to hear of your predicament.
This is not a vet or medical forum, I'm a herdsman for example, and while many of us have a great deal of experience with a very wide range of modern antibiotics and other medications including surgical techniques speaking for myself I have only a little knowledge of the above meds from what I've seen vets use.
In the uk you are not allowed to administer such meds unless suitably qualified & trained with a licence to boot which only a vet would hold.
They are classed as POM [prescription only meds].
While I have seen them used and know roughly the amount that was used each time I would be very unhappy to suggest any amount considering your current situation and also the fact that they would need to be administered with a dart-gun.
I'm sorry not to have been more help but surely there must be a vet or other qualified person you could call nearer home ?
Good luck !