I have found the 215/75R14 tire at walmart. The tire is a Hankook and is a little taller than the common 215/70R14 tire that is available. It is $76 each on their site, and can be installed for $11 each. This may be a good tire for you guys that don't need the extra capacity of the LT tire, which is also hard to find and more expensive. I found it by doing a google search for the tire size. The walmart search page did not find the tire.

 

About a year ago, the Ford dealer told me that they could still get that size if I wanted it. I can't remember what brands they were selling, but I believe they had access to at least two brands.
Probably the biggest complaint about ordering a slow-moving tire would be the fact that you couldn't check the date codes of the tire until they were actually delivered. I did get some 215/75-R14 tires about a year ago from an internet company that delivered them by UPS. The tires were only a couple of months old. They are still on my Aero and have been holding up great.