This isn't a DIY thing to do without experience or expertise, as mentioned, get professional help!

Went to pull out the old dishwasher and realized that they installed the tile floor after the dishwasher was in place.

If not you will need to have septic and well installed.  

Https everywhere and add blocker plus are add-ons I've installed and were both enabled.

With in the CPanel, while installing WordPress it offered up this menu.

There is a fireplace with raggedy old pellet stove installed.A standard Electric furnace would require all new ducting to be installed under the house via a crawl space.

Now, I tend to lean toward architectural purism, but at the same time feel, unless a house is of some historic importance, nothing is exactly architecturally sacrosanct.That said, most bathrooms are usually on the side or the rear of the house, where I feel there is more latitude for minor updating.So, I usually install a wide but skinny gun slit close to the ceiling with a jalousie window (or split it into two jalousies), so the bottom is well above head-height. 

You wouldn't let them run a pit bull rescue shelter, or install a pool and high dive for recreational olympic style diving. 

If vinyl not installed properly you could get water streaming behind the vinyl or leaks of it.6.  

 (2) asbestos is obviously a significant issue - can you confirm when the vinyl siding was installed and by what party?