Resource Duplication
At SpitfireCluster resources can be grown, and even duplicated!
Use seeds and crop plots to upgrade to a Spitfire Tek Crop Plot Tier 2. This can be used to bulk-duplicate most resources.
You can make the Spitfire Essence seeds in the Spitfire Crop Bench, or kill the bosses from the seed bench to get a bunch at random (If the bosses don’t show, pickup and replace the bench).
Tip
Use the Seed Bench inside an S+ Auto Crafter to quickly make the required Crop Plots for a Tek Crop Plot Tier 2.