So after ruining my back with a eberlestock I'm looking at these two packs. Wife is gonna get me one for my bday just need to decide which to get. 90% of my hunting is day trips but walking all day to get back a ways. So I need to haul meat out. Longbow is a god daypack size not sure f the metcalf would be to big? The metcalf is around 4300 ci how big is it without the lid? What are your thoughts?