Project for this summer from a disturbed mind

OK so my friends say I am out of my mind for wanting to build this project. I know that this is the AUTO forums and I am asking about a motorcycle but bear with me, the custom bike I am building needs a donor car and that's what my question concerns.

I want to build a motorcycle with a diesel engine. I thought about several manufacturers: Mercedes Benz, Isuzu, Toyota. My main requirements are I want one without emissions, the more basic the better and decent ot find parts for.

The reason I am building a diesel bike is to convert the engine to run on Veggie oil, therefore have an environmentally friendly chopper that looks wild!

Any suggestions on the engine. I saw the 50's version Mercedes and they looked basic and simple.

Anyway, opinions appreciated...and before anyone says I already know I'm crazy!

Look to the Yanmar, John Deere, and other lawn/turf tractor motors. John Deere used a japnese diesel 3 cylinder in their 4-series lawn tractors that made 20 hp in a small package.

http://i17.ebayimg.com/02/i/04/05/04/c4_12_sb.JPG

Isuzu makes a line of smaller diesel engines. I had a 25 hp 3 cyl diesel in a piece of construction equipment (water cooled) that was compact, smooth, and looked like a motorcycle engine.

Another item used a 2 cyl diesel air cooled engine made by.......................Lamborghini.

http://www.dieselkrad.info/

http://www.enfield-deutschland.de/

http://www6.fht-esslingen.de/sixcms/detail.php?id=1263

http://www2.fht-esslingen.de/hochschule/aktuell/edimo/

http://www.hipfel.de/usr/hjh/Ruggefield/ruggefield_01.html

http://www.winni-the-pooh.de/auto/enfield.htm

http://www.centaurus.de/

http://www.cch.at/enfielddiesel.htm

http://www.iwan-bikes.de/EnfieldKM.html

http://home.t-online.de/home/Beckedorf/enfield.htm

http://www.royal-enfield.de/motorrad_seiten/Enfield_hatz.htm

http://www.charnwoodclassic.com/

http://www.dieselfighter.de/dieselfighter.html

http://www.dieselwiesel.de/

http://www.hatz-diesel.de/englisch/company/frame_e.htm

http://www.loew-gmbh.de/hatz.htm

http://extremedieselbiking.de/

http://www.soldieroffun.pwp.blueyonder.co.uk/diesel.htm

http://www.evamotor.nl/Motorcycles/Track/track2.htm

http://www.dieselkrad.info/index.php?main=motoren

http://www.peace65.freeserve.co.uk/Pictures/diesel.htm

.