I don't think you'll need 6tb of storage for gaming, 3tb or even just 2 should hold you up just fine, and just to save some hassle and money I would get a single large ssd rather than two small ones. Other than that, get rid of the soundcard, I would recommend upgrading headphones before upgrading your soundcard and besides, most integrated soundcards these days are good enough. Use the money you saved to upgrade your graphics card if you can or rather get a larger ssd.