Projects in Bio-diesel?

Transesterfication is the way of making biodiesel on a small scale by using NaOH and methanol to react the long oil chains into shorter esters in order to reduce the average chain length to more closely approximate petroleum based diesel but is this the only way? Would it be possible to do small scale hydrocracking to oglimerize the oils into shorter chain oils that are closer in properties to petroleum refined diesel? Would it be possible to have a small scale gasifier like the Diversified Energy Hydromax gasifier produce syngas from household trash and dried sewage and use small scale Fischer Tropsch reactors such as the Velocys Microchannel FT reactor to synthesize the diesel? What is the actual percentage of the hydrocarbons lost as glycerin in the transesterfication process? Does this loss warrant the conversion cost to WVO grease car configurations in order to use vegetable oil unmodified? Gasification only reclaims 51% of the carbon in the feedstock as syngas that will become synthetic fuel, how does this compare to biodiesel production from vegetable oils when gasification can gasify the entire plant while only a small portion of the plant is vegetable oil? Can the large gasification plants known as "upgraders" used at the tar sands oil plants be converted to gasify trash and dried sewage? What would the transport costs be to bring the trash and dried sewage to the remote locations of the tar sand upgraders? Can the plasma torch incinerators of modern waste disposal plants feed a Fischer Tropsch reactor to synthesize fuel? How does the economics of using waste disposal plant syngas to produce synthetic fuel compare with using the plant syngas to generate electricity as they do now?