Biodiesel - Help needed

I have just had to sell my discovery Td5 GS Auto as it was costing too much to run as i have just bought a house.
Im looking to get either a 200tdi or 300tdi discovery or defender to run on biodiesel, the catch being im thinking of buying a biodiesel plant to make it myself, this way hopefully greatlky reducing the running cost and allowing me to keep a land rover

The question being, as a mechanical novice, is there any preference on engines that run better on biodiesel or a defender or discovery? and does anything need changing to run it on biodiesel? ( id love another TD5 but not until someone else tries it out first)

200 or 300 run ok on bio you jus gotta watch out for wot type of fuel hoses they got as the bio can perish the hoses

I would suggest you have a good look at resources for your oil first.
then consider hiring the equipment rather than buying......I just might be able to help on that score.

Not much to be gained these days unless you can find a supply of cheap used oil from somewhere. Problem is even the used stuff fetches money now.

Get a 200 or 300TDi and just stick filtered veg oil in. Don't bother with all the hassle of turning it into bio-diesel. Add some form of veg oil heating to the fuel filter or fuel lines to help it flow in colder weather and off you go.
3000 miles on filtered waste veg oil from a Thai restaurant in a 50% mix with pump diesel over the winter, to todays weather running on neat WVO. My 2.5TD runs fine on it.