Finished Measurements
The Fox measures about 5.5-inches from the tip of the toe to the tip of the ear.
The Fox measures about 3.5-inches when seated, from the bottom of the body to the tip of the ear. 
The sweater measures about 1.75-inches from the bottom with the hem rolled to the neckline with the hem rolled. 

Yarn
Wisconsin Woolen Spun Fingering Weight by Barrett Wool Co., 100% American Wool; 450 yards/411 meters per 100 grams, small amounts are used as follows. 

Yarn Colorways used in the sample in photograph:
Fox:
Body, arms, legs, back of head, and nose: Hazelnut (heathered dark orange) 
Hands, feet, ears, and nose: Cocoa (chocolate brown)
Tip of tail, and front of face: Birch (creamy white)

Sweater:
Body and sleeves: Bay Leaf (heathered light green)
Rolled hem on body, neck, and sleeves: Oats (oatmeal)

Weight in grams:
The finished Fox including stuffing and safety eyes weighs 13.56 grams.
The finished sweater weighs 4.59 grams.  

Needles
US size 3 / 3.25 mm set of double-pointed needles for the Fox
US size 4 / 3.5 mm set of double-pointed needles for the sweater
Or the size needle to obtain gauge. 

Gauge
7 stitches per inch on the US size 3
6.5 stitches per inch on the US size 4