I have exactly what are You looking for,
Fender Mustang Competition red 1971 without the painted headstock, serial number 396935
It is in great condition but probably needs some little adjustement like to clean pick up and electric contacts.
The problem is that I live in Italy, so I do not know how much it cost to mail to USA.
I am a member of Ebay (my nick is lilla.car).
Before I do some photos, please inform me how much You intend to pay for this piece of Fender history.
By
Carlo