Help with Auto-generating models

I want to make a computer mod where you have different pc parts that each serve a purpose in creating items with your pc

The problem is that i would have way too many models to make and the mod will be too large

is there a way to make it that when i place the GPU inside the computer GUI it will add the GPU to the model (same with the other pc parts)

also how would i make it that when i place a certain item in the pc it will configure it to the item so it will only generate that item and only store the item generated and not any other items