I'm sure there are some who have their adaptations, but seats can be hit and miss as to availability. One thing to be aware of is the width. I would not call Turbo Coupe seats exceptionally wide, but they BARELY fit in the Pinto. The seat belt retractor also gets in the way with rearward movement. I was able to adapt the T/C seats to the Pinto tracks so I didn't have to hack them in. That said with some ingenuity most seats can be adapted to most cars. But, you have to be willing to create the pieces to do so.
Take a moment to look at the Pinto configuration, measure it and then hit the junkyards. Otherwise, just use carpet padding and seat covers and make the Pinto seats functional for as little as possible. But, frankly I got these Mitsubishi seats in excellent condition for around $35 for the pair. The picture is sort of washed out so they look better in person (darker black). And, you would probably pay that for a cheap set of covers. Note, the seats are an example, I'm not saying they fit a Pinto.