A few of the issues are pretty clear (Texture removed from the wall that I had repaired by a drywall contractor and a microwave door case was cracked and needed to be replaced), but there are others that are not so clear to me.  

It will also depend on what improvements have been completed over the years and if they were quality enhancement or chop jobs that will need to be redone.

-When you have a business that is up and running then you may benefit from a course or courses to enhance what you know.

I bought a dark color with texture and etching, almost looks had carved.

Here's the kitchen.Floors & backsplash: 12x12 $1.80/ft porcelain "stone look" jet printed textured tile from Lowes.

If you are planning on spraying more specialized coatings like epoxies, block fillers, or textured coatings, you will need a bigger machine that can handle the workload.  

You can mix the grout with water or grout enhancer.

This typically includes new kitchen, new bathrooms (but hopefully not the baths/showers), new flooring where needed (typically most flooring), removing the ceiling texture, new windows, décor outlets and switches, paint, typically some doors and handsets (both entry doors and/or closet doors)  and there always seems to be something unexpected. 

The experience enhanced my life!

Skim coat the horrible textured wall.