Floorboards are all the same from buckets to bench. Bucket seats had plates welded in on the interior for reinforcement, and the plates are available through AMD if you want an original look. As Tallhair says, you can make your own, but I would recommend welding them in so it distributes the load across a wider area. If you look at the inboard area of the floorpan, you will see dimples where the holes are drilled through.
Yea I called AMD and they dont offer the plates for the top side of the floor but i'll either look on fleabay or see if i cant make some up at work, i just dont want it to be cheezy or halfazzed.
as far as the seats go does anybody sell reproduction buckets as a whole or a kit and just need to be assembled, cause all i can find is buy a part here and a part there, or i may try something close to the original look. I think classic ind. sold some aftermarket ones that bolted in with some adapters
Did you check these out? http://www.ebay.com/itm/like/230986704923?lpid=82.