^^ Hah, scrapton!

I find taming stuff to be fairly lame (lox excluded).
So what I would do is find a boarstone or two (the stone that tells you that you can tame them) and mark the location. 4 or 5 boar spawn at these regularly: its like having a boar farm, only you don't have to do anything. There are always 2 or 3 of these near your spawn point in a new game, in my experience.
You really don't need that much scrap leather. A farm will get you more, eventually, but all you need is just a small amount for early game items, and after that it just piles up. Even if you routinely abandon rafts, you still don't need all you find.