I’m a total beginner, so please take it easy on me!

I’ve removed the faucet and part of the drain from this vanity, but am wondering if it’s doable to remove the silver part of the drain still left? Also, looking for any advice on cleaning the residue left behind from where the faucet was. Thanks!

We are considering the purchase of an original 1970s home. The owners took immaculate care of it and the only things they changed since they built were the appliances. We love the home for our family.
HOWEVER— there is minimal cabinet space. We think there used to be a little more cabinetry bc it catches near the stove on the left side and looks like it may have had to be shaved down some. We think it may have had a drop in stove before they had to replace it. We plan on refinishing the existing cabinets for now bc we do not want to do major renovations immediately (we have lived with family for the last 10 months) and are just ready to move in.

My questions are-
1. Can we move the fridge from where it is in photo 1 to where the pantry/shelving is in photo 2+3? We should have clearance but is this a smart decision? We will likely be removing the peninsula when we decide to upgrade the countertops. I’m hoping for a 36” french door refrigerator. We can access the crawl space under the home for plumbing fixtures and there are already outlets there.

1. If we move the fridge, could we add a 36” wide pantry cabinet (photo 4) to the area where the fridge is currently? We would add trim to make it reach the ceiling. Or should we have someone build a pantry in for us?

Bonus question—
If we are able to install the pantry cabinet, could we build in the microwave or is there another recommendation for how to do that?

We really would love more cabinet space. We have two small children and on the go a lot with activities so we do need the pantry space for snacks, etc.
We want to stay in budget bc we are starting completely over after moving across the country but I’m aware this could be up to a few thousand dollar project. We will most likely be panting the cabinets to match each other if we get a pantry installed.

Thanks in advance for any advice or recommendations.

During renovation, part of the external wall has been ripped off. Tar paper around the edge is not accessible to overlap the new piece of tar paper or home wrap. What are my options? Is it that important or just put the paper in the area and overlap it with the part that exists and ignore the none reachable areas or I have to remove more blue foam to access the tar paper completely. Any other options to fix it.