I don't know if I would be able to manage, especially since I am not sure where the jack goes. It looks easy enough when you watch the NRMA guy do it, but to actually attempt it, I would have to be pretty desperate.
Yes, but one time I bought a car and had a flat within 3 weeks. I assumed that all the part for changing a wheel would be there only to find that it had nothing. Was not a happy camper!