well it is in its standby position, so the hip joints are sitting, low, which reduces height a little ( the limbs are slightly extendable ), but it does have small feet and thin lower legs, mainly because of the way drew them last and it ended up tapering towards the bottom of the page
Oh yeah, I've run into that many times in the past. You start drawing a figure at the top of the page, then you get down to the waist and realize you drew it too large and there isn't enough room for the legs anymore.
I do most of my drawing in the computer at this point, so I can just move things around, shrink and stretch them as I please.
In your case, working on paper, I would recommend what they say in the 'how to draw comics' type books, which is start with a stick figure and make sure it's 7 heads tall to make sure the proportions are right. Because if you draw a stick figure and realize he's too squat, you don't mind erasing and starting over. But once you starting putting in all the detail of the armor it'll be a hard sell to break out the eraser.