Go to this link and then scroll down to Dick's post #4 http://www.fordpinto.com/pinto-faq/front-disc-brakes-(4-5-lug)/

Afterthought - about 8 years ago. I'm downloading my Pick A Part 50% off sale items into the trunk of my wife's car (who has come to pick me up). I comment that I was thinking of getting a set of '73 rotors that looked very decent. She says, "Why don't you go back, I'll wait."  Already lying on the ground all I had to do was pick them up. For less than $15 out the door I have a spare set. Today, if you can even find them..., they are about $115 each the last I looked.  Thank you Dear Wife!

So, yea, the 71-73 rotors are an endangered species.

I have a new pair of rotors.  Shoot me an offer.

Five years ago I bought a "71 hatch built for road racing and then three months later lost my job.
I have had a couple jobs since then, but, none good enough to support racing.  While prepping the car
for an autocross, I found some pistons had smacked some valves (no wonder the price was so good).  Pulled the
motor and found chassis damage that is un-repairable. So, I'm selling parts.

I have been around road racing for a long time and have crewed for several cars, so, its not that I went into the
deal unaware of those potentials. Just disappointed. On the surface the car looked pretty good and was looking
forward to harassing some Hondas.

I had emergency eye surgery on Dec. 14 for a torn retina, so, I hadn't done much reading the last three weeks. Just saw your post. While my post is almost four years old, I'm sure I still have the rotors.  I need to get out in the shop and find them.
I will PM you with the details within a couple of days.

Enzo