The small ones are super slim - I stand my new one on edge in the book case. Out of the way, easy to grab. None that I have seen go over 5 pounds.
I think perhaps you might have a problem getting two-in-one.
I don't think I would stress over it. Get one that can do 5 lbs and up.
Rather imagine it will be much bigger but from the sounds of what you do it would be something you could bring out - weigh all you goods and then put it out of the way till next time. How often do you have a 25 lb of roast or Pork Butt in your hands? Or are you thinking of a whole side or spitting a whole pig?
Even my cats and dog I would do on a floor bathroom scale. Step on, weigh yourself, step off pick up your 20 slab of meat, step back on, bingo - you have its weight.
After 10 lbs of what-evers, are you going to worry about 5 oz. one way or the other?
The small one would always be right there for your spices, etc. I imagine you use that frequently.
All this is assuming you don't want a commercial/industrial one.