I would mostly just worry about keeping it warm for the next 24hrs and see what happens. Sometimes they really come out of it. If it's active I'd be inclined to say it should survive but it may or may not have a leg problem that would require care or resulting in having to cull it. You can't...
I usually don't measure it because it's not real important. A few pinches of sugar, dissolve as much as you can, and give a few drops to the chick. Be careful not to drown it.
If he still has yolk leave him in the bator until it's gone. Some sugar water might help but if he's wiggling around he's got energy. He's still early coming out of his shell so it may take him awhile to get on his feet. Sometimes chicks that have trouble don't walk normal for a day or 2...
The veins themselves may not be absorbed but the blood in them is. You want that blood in the chick not dried out or bleeding out all over. Wrap the damp paper towel around the membrane keeping the beak completely clear. Do not touch except to rewet as needed for another 4-6hrs. Check it...