It's best to buy fresh jackfruit from the Asian grocery store. You can buy it either fresh at the produce section or at the frozen section. If you're not sure how to prepare and use raw jackfruit, I suggest going with the frozen kind that is ready to cook. If you cannot find it in either form, your can also buy canned jackfruit. My recommended brand is
Native Forest which is available at Whole Foods stores, other health foods stores, and online. Just make sure it's the green, unripe version and NOT the yellow one in syrup.
When buying coconut cream, you can buy it fresh at the frozen section of Asian grocery stores. The frozen kind does not have additives, preservatives, gums, and other ingredients. Your next best option is buying coconut cream in a can. I recommend the brand
Savoywhich has the least watered down ingredients and additives.