Change the fuel filters, fill the big one with redline or diesel purge. Crank the motor over with a fresh battery without glow plugs before hand, this will circulate oil.

Start her up!

Add Biobar to the tank if you start seeing gook in the in line filter. Algae will appear as black flakes. I'd add a quart of power service additive and top off the tank. Carry extra filters with you and it should be a piece of cake.