They are very hard to find in Kissimmee, but they surface periodically. 

Another thing I thought about was to put a drainage system, like a french drain...

Restaurant tenants more concerned if they're on the hook for roof, rooftop HVAC, parking lot surfacing, striping, etc.

We hired a plumber and the drainage issue was quick fixed, and water extracted.

The numbers you presented certainly look good on the surface, but you really have to be careful about where you're pulling your data.

That keeps the cracks in the slab from coming through to the surface of the tile.

On the surface this sounds like a pretty good deal to me, but being in a rural area could be a problem if you have vacancy.

After cutting the slab for the plumbing, I will need to float the entire floor to make a smooth surface. 

how about price of draw inspections, etc. you gotta dig deeper than the surface

do granite if you can find one of the independents with the tools/connections.... half bulnose/flat in a pattern and really common color.ikea has really cheap formica (almost to the point of per/renter  expandable) but you need a quick and good handyman.formica also makes solid surface (not just foil)... not sure how it handles a hot pot and knife cutting....you can also do really large porcelain/granite tiles (18-20"+ inches) with very thin grout lines...concrete can go with a very good sealer, and somebody who knows what to do.but in the end, you want something you can replicate again and again with not a lot of headaches down the road...continuous success