It will take a lot of time, and time will be the major money component of this job.The outer diameter of the pipes is going to be a serious issue between 1 1/2 copper and PVC as you called it -- there is an extreme difference in thickness.

I used a product from Home Depot, and then had part of the ceiling painted with a really thick paint roller and it turned out pretty good.  

Where I live, it's not uncommon to see a handful of basement jack posts either on concrete pads or on the dirt itself to deal with soft spots on the foundation, but the soil here is thick, heavy clay with solid rock close to the subsurface, so there's not a whole lot of movement.

specifically I was thinking about general cost on plumbing and drains on a 50x150 lot w alley sewer access and say a 30x50 or 30x60 by 6 inch thick concrete slab.

There are many thicknesses and colors.

Specifically, something like a Sharpie like pen, with a tip at least 1/4" thick, that can write on dark green, dark blue and black trash carts?

When we began chipping off the old 4x4 tile on the bathroom walls we found a slab behind each wall about an inch thick of concrete to which the tiles are adhered to directly.Is there an easy way to remove the tiles or should be just demo the entire slab, tile and all and just replace with 1/4" concrete board on the remodel?

I thick we offered to give them $50 to buy a new mattress and promptly evicted them when the opportunity presented itself.

Old thick stone walls are much harder ($) to work with if you want to make significant changes.

To be effective and successful in business, one needs to have a thick skin.