newbie from ct. location question

Hi, I am restoring a 70 cuda 440 u code car, the car had fender mounted turn signal indicators at birth, the existing fenders are blank and I want to install the indicators. There are 3 holes in the fender for these and i need the measurements for location. also the location for the antenna on the right side, any help would be appreciated, Thanks Greg, love the site
Author: cudaRB