You could set up the refinery to do this. Follow that structure tutorial and use the Forge as your template that you copy and paste instead of the standing torch. Then, once you have your new model in game you will have a ‘new’ crafting station that you can put materials into and it will create whatever items you want. You just need to go through the forge files and see where it shows what items go in and what items come out. You could then create a new inventory item called Alternator that is just an icon of the part that does nothing when used. So your recipe list could be 5 unrefined metal, two oil and two electronics produces the Alternator and maybe 40 refined metal, ten oil and whatever will produce a Motor inventory item. Then have a recipe that takes all of your premade inventory items as a recipe that produces a car inventory item. Then have that car inventory item spawn your vehicle like building a wall or you could use this Quickie Blueprint Example: Spawn a Replicated Actor on the server-side using Blueprint - ARK: Survival Evolved - Unreal Engine Forums to have any event you want spawn the item. I saw an interesting tutorial, (can’t find the link), where a guy spawned a a new ‘dino’ that used an offroad vehicle as the skin. Definitely seems doable if you have the time.