The smell should clear out of the plastic box over time. Let it sit outside, maybe in the sun for a few days -- just like the initial cleaning of a cooler for a cooler-dor.
You should be able to wash out the foam trays. Use a good mild soap and then make sure you rinse out all the soap. Even when you think the soap is out, keep rinsing
Let the trays sit out (outside even) a few days or more to dry and you should be good to go within a week.