Help for Half Pint

I found Half Pint outside.His 4 siblings had died, he was the smallest and has a strong will to survive.
i have had him  from just before Christmas.
he weighs 8 ounces.The vet thinks he is maybe 5 weeks old.He was doing well with me syringe feeding him.On New Years Eve, he was having trouble staying upright.
He is at Access right now, fighting for his life.He is having trouble maintaining his blood sugar and temperature.He is in Intensive care.
As you can imagine, this is very costly.But I want to give him a chance, as he is trying to survive.
I appreciate whatever you can afford to donate.No amount is too small.
If you know me ,you know my cats are everything to me, and I want to do what I can to help them.