I think you're gonna get a TON of interest in this subject.
I'd be interested in one of those Eddie Bauer center seats. I think you got the right idea - take a standard F150 center seat and recover it either with a new Lightning seat cover, else the original material from whatever source. My past research (about 6 months ago) has revealed that the striped fabric from the center of the bucket seats is still available, however, the dark gray outside fabric (which covers the entire original center seats) is no longer available. Thus, all of the aftermarket center seats come now in the striped fabric only. Now if you found a source for the dark gray fabric, that'd be awesome!
I've got a Full Effect seat in mine now. Nice part, looks good, but I'd still like to get an original for mine.....maybe I'm a bit anal retentive or something. So if you have a standard or EB seat, let me know, I'd be interested in buying it and recovering it...
- Kevin