The answer to your first question is maybe. Don't mean to sound facetious but the issue with the price of biomass feedstocks like corn and soybeans is that their price is being pushed up by the demand for alternative fuels (corn for ethanol and soybeans for biodiesel). And right now the price of the biomass feedstocks seems to be outpacing the price of crude. So commercially produced biodiesel is still more expensive than petroluem biodiesel, and the ethanol fuels are still more expensive than petroleum gases.

The answer to your second question is yes, there are "one-stop-shop" all-in-one production units for biodiesel, but for the automation, you pay the price.

A good example are the BioPro processors, like the Biopro 150, 380, etc. There is some info on them at: Utah Biodiesel Supply - Biodiesel Homebrewing Supplies, Equipment, Processors and Information

But be ready for sticker shock compared to the "somewhat" more manual units like FuelMeister, etc.