I had one of the "glob of resin" beds...I just threw it away. I don't know if this is the same caster the thread concerns, but I bought five beds off an individual (he can reveal himself if he chooses). The beds were inexpensive, perfectly servicable, mostly accurate (some liberties were taken with the inner bed floor and wheel wells, but not to an objectionable degree). You get a one piece bed with tailgate molded in (detail on both sides of tailgate), bed floor with wheel wells, and tailllights (regular resin, not red). I'm not at my own computer at the moment, so I can't post images yet.
I don't know if this caster wants to do just beds or not, so I won't reveal his name, but he might want to consider doing so, as I think this ( and well done standard wheelbase '73- '79 Ford bed sides) are a market begging for a product.
If anyone is interested, here's how I did mine : http://smg.photobucket.com/albums/v625/Repstock/Ford%20pickup%20standard%20wheelbase%20bed/