Engine & Internal - oxygen sensors!!

i have a 1997 honda civic dx and i need two new oxygen sensors. one is bad and the other one is missing. anyway, i need both of them so i can pass inspection. can anyone help me out?

help you out with what? just go buy both of the sensors from a parts place and screw them in.

i was seeing if anyone had used ones for cheap because two new O2 sensors would run me almost $400.