Muley - I have 30 or so hides that I got from a local processor - Had like 50 but they got wet somehow and had some deterioration - so I just chucked them but I would check with processors in your area and see what they get.
You will need 6-8 hides depending on your size and the size of the hides - to make a full set 3 for pants and 3-4 for jacket/frock.