Re-doing a set of Bucket Seats

I'm looking into replacing the buckets in my 68 Dart since they are from a late model (i don't even know what) car. I'd like to use a mopar high back-style bucket. In checking prices for upholstery and seat foams, I'm sort of blown away. Does anyone sell affordable factory style upholstery and seat foams? The ones I saw on Legendary's website were $440 for one cover for a 71 Duster bucket seat and $240 for the foams for that one seat. That's almost $700 per seat, $1,400 for the pair?! Is that what it costs to re-do these seats, or am I missing something here??? Is there a more affordable alternative?

Someone fill me in...

Thanks!