Steaming and frying veggies is fine.
Coconut oil is antifungal and can be used for cooking.
Iodized sea salt contains dextrose which is basically sugar, so not it should not be taken with the diet.
D3 is an acceptible vitamin but don’t use it during the cleanse because it’ll just get washed away or detoxed.
Molybdenum should be available at most vitamin stores (vitamin shoppe is a chain we have in the states that carries vitamins).