Lemme put it this way: if they're under 25, and not fans of domestics, they'll probably think it's a neat old car. If they're either Domestic guys or are old enough to remember it, they might tease you a little, but, really, I think the guys in the Classic/Antique Car hobby won't be at all displeased you're trying to get into it.
Find an old car club near your location, and drive the thing on cruises. '70s cars are starting to become...well, not hot, but warm items, and begrudgingly appreciated. Compacts like the Pinto, Vega, and Gremlin have small cult followings, and I'll bet you'll find some loyal Mustang II owners out there, too. Dare I say it, but there may even be a club.
I still say tear out most of the emissions crap if you know that the car'll run well enough without it. If not, replace all the vacuum hose: it'll probably need it. Emissions-controlled Carburetor engines = Nightmares if not well maintained.