the factory offered bucket seats in the custom cabs in 68?-72 i had a 71 with them in it they have a large center box like console, big enough to set on, my Bassett hound rode over 100,000 on that console.
You just have to see how things fit. I have a 65 Chevelle and I have leather bucket seats from a 1990 Pontiac Grand Am. Just check around. Get some seats from a junk yard and re cover them.
Good Luck Fireschenie