You need both a Coop and Barn for the CC Bundles, no other Farm Buildings are required. However if you are intending on filling up that Coop and Barn after you get the needed animals, you really should get a Silo first so you can store Hay that you Scythe from Grass (Scything Grass without a Silo just makes the Grass disappear) to feed those animals on Rainy and Winter days when they stay in the Coop/Barn. If you fully upgrade the Coop/Barn, that building can then pull Hay automatically from the Silo (heh, automagically as you can place any of these buildings anywhere on your Farm!). Plus the Silo is cheap, no reason not to get two at twice the price!
To get the better Animal products you need for some of the CC Bundles, let your Animals out every day and allow them to eat Grass on the Farm. Also, Pet them every day! Happy Animals make those better quality products faster.