Adam I'm not sure which mirrors are currently mounted on your car, Ford mirrors tend to have a very long base with mounting holes spaced very far apart, in comparison to aftermarket mirrors. The Ford "sport" mirrors on my Pantera have mounting holes over 6" center to center.
I have a set of the real deal Vitaloni "turbo" mirrors on the shelf, the cast base of those mirros is only 5" in overall length. I would not be able to install the Vitaloni mirrors without exposing one of the mounting holes of my current Ford mirrors.
The baby turbos are not the same mirror as the turbo. The turbo is a much more expensive mirror, with a more expensive mounting system and a more elaborate "break away" feature. The turbo is the mirror installed oem on Panteras in the '80s. The baby turbo was sold by Vitaloni as an aftermarket style mirror, it was designed without all the expensive features of the "turbo" to keep the price down. When I last checked, one of our vendors sold a new Vitaloni turbo for $130 each. They are no longer manufactured and hard to find. Pegasus Racing sells the baby turbo for $80 each, which is no bargain.
It should be easy enough to ask the seller to measure the overall length of the baby turbo mirror's mounting base, and at least you'll have an idea if it is long enough to hide both mounting holes of your existing mirrors. I'll guess the baby turbo base is only 4 3/4" long, and the maximum spread of the mounting holes is only 3 3/4" center to center. (I own a set of Vitaloni Concept V mirrors with those dimensions, I believe the Concept V has the same mounting base as the baby turbo).
your friend on the DTBB