Got it, but each of the four loaves would be a little smaller than the size of one of the two loaves since you only adding 1lb to 2lbs+, if that makes sense.
Just thinking out loud here for next poker game...
I think I would just double everything and make two large loaves. Should be plenty for 8 people.
Also would split mixture in half and add some hot green chilies to one.
I use the Jimmie Dean Hot Sausage when I make meatballs but the green Chilies will kick it up a couple notches.

We are in New Mexico, we like hot, and so do most of my friends.
My wife no so much, so one on the mild side for her and two others.