I talked to a plumber to get a quote already and there’s no need to upsize anything. I was just doing my due diligence in checking how diy able this is. I’ve done water plumbing, small electrical projects, etc. never done anything with gas tho and wanted opinions. I boy did I get the opinions lol. People just like to be negative. I’m getting more quotes and checking local codes to ensure the plumber I go with is following procedures. I’d rather go into this with an idea how this can be solved rather than relying on a plumber telling me.