Tell us about yourself!
Yeah I live in NC, between Duke Power's rebates and the federal tax credits, it saves you some money. However, Duke Power wont give you a rebate unless you use one of their approved contractors
Having a couple years experience in pouring concrete footers I would suggest building a 3d rectangle with the rebar and then anchoring the vertical rebar support to that rectangle before you pour the concrete footer. Otherwise, the rebar inserted into the cinder block cells are essentially useless. Additionally, I agree on the comment below that it should all be poured at once unless you do it sectionally over the rebar support I first mentioned. Other than that, I tend to agree the rebar and concrete footing were most likely not terribly necessary given the nature of the wall. That is unless you have friends that are whales
It became illegal to melt down pennies and nickels in 2006. It is also illegal to carry more than $5 of the coins with you outside of the country, and to ship more than $100 of them out of the country. A simple google search will inform you of this.
Concrete Sidewalk or Pavement
What does your state produce to make it profitable? Taxation is theft
If your crawl space wasn't so small, I'd recommend encapsulating your crawl space in regards to the moisture. Though it might still be a good idea so that you do not get mold and rotting floor joists.
$14 Secret Crawlspace Access Door
I've been told not to take the plastic all the way up to the top of the concrete so that their cones will be visible for any inspection. Was that something you had heard, has your termite inspector said anything about it?
I just wanted to point out to you that almost all modern plumbing utilizes PVC pipes and there have not been any reports of VC toxicity epidemics thus far. The vinyl chloride by itself is harmful, but I do not think you would be at risk by having pvc lining in your crawlspace, especially considering it has a low half-life and the amount of VC that vents off of PVC is not of any consequence because most harmful concentrations would be long gone by the time it was under your house.