Waste oil conversion, anybody done it?

[UGLYTRUK]

Got deezel? I bet there's someone nearby that has already done the conversion. Usually on a Mercedes or Volks. My only concern is who's kit to use. Check these out... http://www.vegpower.com/, http://forums.biodieselnow.com/topic...07&whichpage=2, http://www.frybrid.com/forum/usercp.php?hpage=2, http://www.fattywagons.com/fwproducts.htm.
Confused? Me too... The VORMAX filter seems to be the one. Then the fuel tank issue. $$$ to build a small deezel, and where to put it? Behind rocker? Behind right rear wheel well? And fill directly from restaurant to tank thru VORMAX filter. Thereby not storing oil at home. A pain...