Bear in mind, to use an Eternal Wand, you either need to be an arcane caster or make a Use Magic Device check. This character uses Divine Metamagic, which means they’re a divine caster, so probably not also an arcane caster. It would be very difficult to make UMD consistent at 5th level. Also, most divine casters have access to Create Water natively, so there probably isn’t a need for a magic item that duplicates the spell anyway.

Fostburn has Blue Ice which never melts and stays cold forever. It’s explicitly noted to be used in setting for food storage.

The cheapest magical lighting I’m aware of is Liquid Sunlight, from Complete Scoundrel. A half-inch container shines with the light of a torch for as long as the contents aren’t exposed to air. Only costs 20 gp.