That is awesome!! Make sure you study up on the operations of all the equipment. You should do periodic rehearsals of putting everything into service (hoses, pumps, ladders etc.) Having your own working firetruck on your property is worth its weight in gold. You also need to identify a standing water source on your property in case you need to draw water in an emergency.
That motor must be a monster. Probably weighs as much as my Suburban. :-) I wonder how hard it will be to find parts.
Congratulations on the great find!!!