I did a run late last night and collected enough black pearls to make the replicator. Half are at mental mine and the main base.
I have collected quite a lot of metal and have done the crystal.
So it's really the Polymer which may be a group run or two to the bottom of the map (or the surface) and the Element which will need a run to the surface to get the element ore (200+) . I think it needs a bit of a squad given the reapers. Not sure of the best dino to defeat them?
100 × (https://d1u5p3l4wpay3k.cloudfront.net/arksurvivalevolved_gamepedia/thumb/a/a5/Element.png/25px-Element.png?version=e45b0248106a0153ccf5ca4815543950) (https://ark.gamepedia.com/File:Element.png) Element (https://ark.gamepedia.com/Element)
5000 × (https://d1u5p3l4wpay3k.cloudfront.net/arksurvivalevolved_gamepedia/thumb/3/37/Metal_Ingot.png/25px-Metal_Ingot.png?version=ae21972fa16a05d80fc8c4a196ac52aa) (https://ark.gamepedia.com/File:Metal_Ingot.png) Metal Ingot (https://ark.gamepedia.com/Metal_Ingot)
600 × (https://d1u5p3l4wpay3k.cloudfront.net/arksurvivalevolved_gamepedia/thumb/3/31/Crystal.png/25px-Crystal.png?version=fc0c9d5305e63995c356fbd2ab2139e0) (https://ark.gamepedia.com/File:Crystal.png) Crystal (https://ark.gamepedia.com/Crystal)
150 × (https://d1u5p3l4wpay3k.cloudfront.net/arksurvivalevolved_gamepedia/thumb/4/4c/Black_Pearl.png/25px-Black_Pearl.png?version=c17e7ffad9d79d7035d59ae5a80f12db) (https://ark.gamepedia.com/File:Black_Pearl.png) Black Pearl (https://ark.gamepedia.com/Black_Pearl)
800 × (https://d1u5p3l4wpay3k.cloudfront.net/arksurvivalevolved_gamepedia/thumb/8/81/Polymer.png/25px-Polymer.png?version=c302410a42fd9b2a4c8aa6a738805e30) (https://ark.gamepedia.com/File:Polymer.png) Polymer (https://ark.gamepedia.com/Polymer)