Custom PC Configurations For WooCommerce

We are trying to build a website to sell pre-configured desktop PCs that allow the user to upgrade the various parts (video card, sound card, etc). For example they choose PC ‘A’ that comes with all of it’s components preselected, but allows them to choose to upgrade pieces for an additional cost. We can’t seem to find a solid plugin to handle this sort of customization. Any suggestions would be greatly appreciated.