RBS Upgrade Questions

I have had my RBS for a while now but unfortunately i had gotten the 128 gig ssd. I would like to upgrade this to an even bigger ssd and thinking about getting the razer Core to add GPU support. Can you tell me if the following would work on my laptop? SSD: would it have slower read/write speeds?-https://www.amazon.com/gp/product/B07YFFX5MD/ref=ox_sc_act_title_1?smid=ATVPDKIKX0DER&psc=1 Razer Core Is this the V2? - https://www.amazon.com/gp/product/B07CQG2K5K/ref=ox_sc_act_title_3?smid=ATVPDKIKX0DER&psc=1 eGPU: Would this GPU work with the Core above? - https://www.amazon.com/gp/product/B07WC7683C/ref=ox_sc_act_title_1?smid=ATVPDKIKX0DER&psc=1 I was going to buy a complete brand new laptop but unfortunately I had some bills to clear off since my mom got sick so I am looking to upgrade what I already have