When to cook week old moose meat?
Do you know what part of the animal is included in your cuts?

If you intend to cook it all as stew meat, then I would advise to cut it now and freeze (wherever you can find space).

If you coat the steaks in salt, they will probably last a bit longer in the fridge without getting too smelly.

The only way I would recommend pre-cooking to extend life, is a roast, which should enable meat to last an extra week in the refrigerator. But, if your cuts of meat are not suitable to roasting, then that might be terrible to eat.

The final option - which is again, a waste of good moose meat - would be jerky. I can't advise on jerky techniques. Never made it.