Diesel is probably fine but I just feel that Kero is cleaner and doesn't smell so bad if you spill some, in the car or on yourself.

The price here in the northeast is pretty close. I get it at the local gas station and run it through my Mister Funnel before it gets into my 5 Gal. containers. It is then filtered by my fueling station before it makes it into the plane. Never had a problem with dirt or water.
If for some reason the Kero was unvailable I would definitely go to diesel. It doesn't smell as bad as JetA.

Bob