Overview
Building a Tank requires a lot of resources. Here is what I have gathered. I might have gotten a few calculations wrong, but this should roughly be the required amount. I advise going through and completing a Phase one by one. Basic Materials 5210x Iron Ingot -> 110x Cogwheel, 5100x Steel Ingot 1020x Steel Ingots -> 1020x Heavy Steel 245x Bauxite -> 245x Aluminium -> 50x for Car Battery, 65x for Circuit, 130x Aluminium for crafting 520x Clay + 520x Logs -> 260x Ceramics -> 65x Circuit 1523x Rare Metal -> 1020x for Heavy Steel, 65x for Circuit, 30x for Spring, 408x for Bolt 500x Straw -> 250x Old Rags -> 50 Cotton Canvas 230x Copper Ingot -> 100x for crafting, 130x for Circuit 503x Titanium Ingot -> 503x Alloy 438x Silver Ingot -> 30x for Spring, 408x for Bolt 50x Gold Ingot -> 50x for Car Battery 130x Crystal -> 65x Circuit 330x Rubber 50x Dragon Scales 500x Limestone 250x Bioethanol 30x Heated Mineral 2x Bone Meal of Enormous Beast 200x Battery Individual Materials Heavy Steel (1x) 1x Steel Ingot 1x Rare MetalAluminium Ingot (1x) 1x BauxiteAlloy (1x) 1x Titanium Ingot 1x Rare MetalCeramic (4x) 2x Clay 2x LogsCircuit (1x) 1x Aluminium Ingot 2x Crystal 2x Copper 4x Ceramic 1x AlloySpring (1x) 1x Alloy 1x Silver IngotBolt (1x) 1x Alloy 1x Silver IngotRubber (1x) Obtained from a Rubber Tree. Locations in Poisonous Forest: https://imgur.com/a/iLGGWF6Cotton Canvas (1x) 5x Old RagsCar Battery (1x) 5x Aluminium 5x Gold Ingot 20x BatteryGun Barrel (1x) 10x Heavy Steel Phase 1 Total materials: 960x Heavy Steel 5x Circuit 10x Spring 10x Cogwheel 368x Bolts 330x Rubber 50x Cotton Canvas 50x Dragon Scales 500x Limestone 250x BioethanolSmoothbore (1x) 1x Gun Barrel 20x Heavy Steel 5x Circuit 10x Spring 10x CogwheelTracks (100x) 200x Heavy Steel 200x BoltsWheels (28x) 140x Heavy Steel 168x Bolts 280x RubberFuel Tank 100x Heavy Steel 50x Rubber 50x Cotton CanvasArmor Plates (50x) 500x Heavy Steel 50x Red Dragon Scales 500x Limestone 250x Bioethanol Phase 2 Total materials: 60x Heavy Steel 6x Mechanical Parts 2x Bone Meal of Enormous Beast 30x Heated Mineral 20x Circuit 28x Wheels 100x Tracks 100x Aluminium 100x Cogwheels 100x Copper IngotParts of Gun Turret (1x) 30x Heavy Steel 1x Mechanical Part 1x Bone Meal of Enormous Beast (Dropped from Dragon in Triple Island zone at Island level 7) 30x Heated Mineral 20x CircuitParts of Tank Hull (1x) 30x Heavy Steel 5x Mechanical Part 1x Bone Meal of Enormous Beast 28x Wheels 100x TracksEngine Parts (10x) 100x Aluminium 100x Cogwheels 100x Copper Ingot Phase 3 Total materials: 1x Parts of Gun Turret 1x Smoothbore 1x Parts of Tank Hull 10x Engine Parts 10x Fuel Tank 50x Armor Plates 40x Bolt 40x Circuit 20x Spring 10x Car Battery 30x AluminiumGun Turret (1x) 1x Parts of Gun Turret 1x Smoothbore 20x Armor Plates 20x Bolt 20x CircuitTank Hull (1x) 1x Parts of Tank Hull 20x Spring 20x Bolt 20x Circuit 30x Armor PlatesEngine of Jupiter (1x) 10x Engine Parts 10x Car Battery 10x Fuel Tank 30x Aluminium