Using the DX tools in Milkshape 3D is going to be as close as you'll get to doing this on a mass scale. You'll need patience though because even with tools like that it took me weeks to cut through everything. Yes, it probably has polygon bloat, but since I just can't deal with Blender that's as good as it's going to get unless someone else wants to help

GenerateFar is junk and always has been, plus it doesn't work in 64 bit systems. The PyFFI method for generating them isn't much better than GenerateFar.
Either that or do what Phitt said and learn Blender and hand produce suitable _far.nif files that way.