Seat interchange?

I dont know of such a resource. I do know buckets from a larger car are usually wider. I put 67 Fury buckets in our first Barracuda. They hit the center console and the door panels. Once the door was closed you couldn't get a hand on the seat belt. The seat wouldn't move forward either.
And rear benches are even more challenging. Not even all a-body rear benches are interchangeable let alone thos from other models.
Good luck