Another thing to do on any vehicle that has been sitting that long is to make sure the air cleaner is clear of mouse nests, etc. If you can get clean fuel to the injectors, the engine is turning over, and the engine is getting air chances are it will start. Make sure the exhaust pipe is pointed away from your house and anything else you value as a diesel that hasn't been run in awhile will often spew black smoke and nasty black goop out the exhaust when it first cranks up.