I have bought a treadle sewing maching from my aunt. I also have lots of thread, zippers, buttons (but you can always make them from wood or antlers). I've got extra needles for the sewing machine, and little oil cans for it, also. As for a BOB sewing kit, I have fishing line, dental floss, carpet thread, needles, buttons, Safety pins, a couple of horse blanket pins, diaper pins, and a couple of strong zippers (for jeans).
I'm looking for a leather awl w/ neddles inside the handle. I'm also looking for more carpet thread for coats, jeans, etc. I'm hoping I don't have to fix harness for a while, but will have stuff to do it with.