You'll need to get to level 6 crafting and any hammer, simply just craft everything you can. You'll most likely be working toward the Gotta Craft Them All! achievement in the progress.
Over the course of the game you'll explore Islands, loot chests and salvage wrecks. Take the chests and leave them on your home island and use them to store items or you could just leave the items on the island floor, they don't despawn.
You'll need to find:
Vehicle Gyro part X3
Vehicle Fuel part
Vehicle Filter part
Vehicle Engine part
Vehicle Electrical part X2
Mostly found mine in cargo ships but wrecks are the main source, just be sure to search lockers, chests and consoles. You can easily use the map editor and make a map with a cargo ship or any wreck and place it next to your home island. Once raided return home, exit out and replace the island with the same island you've already created, Restoring all resources. You can also use that way for resources such as Trees, yucca, animals, clay and more. This method makes everything easier.