Did Vinni not do all those models as commission pieces? He's not been doing Fallout miniatures recently, presumably due to having moved to Europe and copyright concerns. His recent ones aren't the direct copies that his earlier ones are, so I doubt he'll be making exact knock-offs any more.
As Deltadog said, the raw mesh files are available from the game now. You can hook them up with a local 3D printer and have those produced, though I personally can't speak for what the results would be like.
...Personally I'm more up for just sculpting this sort of thing myself. Pity then that I have no idea how to cast anything. :/