Our Jepp planning show landing fuel as final reserve + alternate + full contingency. Whether it had been modified to do so, I do not know. But that is the way it works.
What strikes me is the large amount you describe. If you are a JAR-OPS operator, I believe you can at least halve the figure by using either "en-route alternate" or "pre-determined decision point" scenarios. I believe other OPS regulations have similar provisions. If this is wise, I would rather not comment neither am I a commander to do so.
FD.
(the un-real)