The Bronco buckets are the same seats as the extended cabs with buckets got, and the later model F150's with the 40/20/40 split bench got, so, they should be a fairly simple swap.
My buddy has the seats and console out of an early 90's Eddie Bauer Bronc in his 84 F150, knowing his level of mechanical ability, and that he in fact put them in himself, it can't be a hard swap.