DYSMANTLE

This requires you to upgrade your backpack to level 3, which requires Hide from deer and/or dogs. One of the earliest spots I found to farm easy hide for Hide is at grid M40, the Maximum Gas Station, just above the Evacuation Site. There is a campfire a short run to the south of M40 and there is a zombie wolf in the fenced area of the gas station. Kill the wolf, grab the hide and run back to the campfire to respawn the wolf and repeat until you have 10+ hide for two backpack upgrades you need. There is also a few deer running around south of the gas station that you can keep an eye out for to get some extra hide.

Once you have a level 3 backpack, simply fill it completely with any type of material. I found it easiest to either wait until you have a full harvest at a farm with 12+ corn planted and pick those all up OR use your Sickle tool to harvest all the vines growing on buildings to fill it with Plant Matter. Either one is easy to accomplish.