5 Grams would be about a teaspoon. (I googled it- it's easy to do)
You can use your bottling bucket and bottling wand to bottle with.
To know how much priming sugar, you'd have to make sure the ferment is done- what is the f.g.? If the f.g. is over 1.000, I wouldn't add priming sugar at all. If the cider is say, .994 or so, you could carbonate it like beer.