If I'm going to spend the time and effort for such a hunt I would prefer a full tang / robust knife.
I understand wanting to keep weight down, but I would prioritize build quality over weight. Especially when your talking about a few ounces....
Sure a lightweight knife can cut, but there's a number of things it cannot do.
If you need to cut more than meat, that matters.
That's my 2 cents / 0.176 oz worth.