2000 villager

Hi

I am planning on taking my Villager on a long trip ( 4000 miles ). It has currently about 75000 miles on it. It runs wonderful. My one doubt is , should the timing belt be changed or can it wait. The van has been well taken care off , and never abused. I change the oil every 3 months irrespective of the milleage.
I would appreciate your thoughts and advise on this .

Thanks,
Ranga.

I would have all the fluids checked and the oil changed b4 leaving. The van is due for a belt at about 100k. I would also have the other belts looked at b4 leaving.