I think it is worth more than $60k.
I would think $80k, plus or minus.
It is a great color, and the 72s seem to get a bonus.
it is pretty comparable to this one:
http://forums.pelicanparts.com/porsche-cars-sale/841905-update-1972-porsche-911-t-98k-documented-miles-gulf-orange-numbers-matching-origina.html
Dude was asking $119k. Had it advertised here for about four months. Says it sold in March. I wonder what it settled out at.