I dug up a gorget and a pair of demi-gauntlets that were left here by yet another wannabee fighter/armourer. Not the best pieces, but usable none the less.
The gorget has a fixed 17" inside measurement, is 2 5/8" tall in the front, and 4 1/2" tall in the back. I have a 15 1/2" neck and it would fit me well with 1/4" to 3/8" padding. The gauntlets are a size medium and would fit someone around 5' 7" to 6'0" with average size hands. I am 5'8" with a measurement of 9" around my palm and knuckles and they fit me pretty well.
I am asking $25 + shipping costs to your location for both peices. I figure thats pretty fair since most gorget alone cost about $30, and demi-gauntlets a bit more at $40 to $45. Loaner armor seems to be screaming for these pieces -they would even look good in hot pink!