Too bad you can't slide in the seats from an Imperial. I really like the super cushy split bench in mine. It's more than roomy enough for a guy your size.
I put a complete interior out of a '69 Mercury Marquis into my '64 Polara. It was a hassle...the floor had to be cut out of the Mercury to handle the seat mounts (Electric split bench for driver & manually adjusted passenger), but when it was done it looked factory and I was comfortable. The rear seat looked great and the door panels looked great and almost stock. But of course it was not numbers matching...as if I cared!!