Here is the image for in the engine bay:


At the boot end, I drilled a hole in the wheel well (behind the passenger side rear wheel), so that the fuel hose passed thru this hole, above the muffler heat shield.
Have a look under the car and you will see how I routed the hose from there between the rear subframe and the rear 'swing arm'.

What connection configuration were you considering?
Feeding the individual fuels thru the Pollak valve prior to the fuel pump and the return lines thru the Pollak also, sharing the fuel pump and main diesel fuel filter for diesel and veggie oil? or;
Reconfiguring the diesel filter to before the Pollak so the fuels do not share this filter, but share the fuel pump. In this case, the hoses which connect together on top of the stock fuel filter need to be isolated from the diesel fuel filter. There is a cxircular firring, bolted to the top of the diesel filter housing. undo thisbolt and you will find that it is hollow, allowing fuel to pass thru a small hole in the housing, to the return lines. In the reconfigured location, this will either cause unfiltered oil to be sucked from the diesel tank thru the return line or for the returning vegetable oil to pass to the diesel tank. This is why I recommended that the Banjo Bolt (the circular fitting resembles the sounding box on a Banjo) which is hollow would need to be either replaced with a solid bolt of the same thread pitch, or epoxied up to prevent fuel flow.
If you can draw a diagram of it, you could make it easier to connect the hoses to the correct places.

I have drawn up several versions of conversion diagrams at this thread You may be able to adapt onte of them, using MS Paint or a similar drawing package.

Tony