Everyone, I wanted to report back that I was able to replace the battery on the Macbook Pro 13” (with touchbar) myself and using the ifixit guide for the 2017 MBP battery replacement works just fine. So I paid $85 for the new replacement battery (bought on a different site) and $20 for the ifixit adhesive remover kit. So no need in my case to buy the MBP Upper Case assembly and I saved myself a lot of money. Everything on my MBP works perfect now. If anyone is in a similar situation with a swollen battery on a 2018 Macbook Pro as myself they could use this way to fix it :)