Once upon a time, "Mild" was just a term that differentiated English beers that were flinty and bitter ("Bitters") from those that weren't ("Milds"). Over time, it seems like we've gotten away from that approach in favor of using "Mild" to describe low-ABV beers that are particularly dark, malty, and even roasty - but that doesn't mean that we shouldn't keep the Pale Mild alive!
Although they make no appearance in the 2015 BJCP Style Guidelines, you can still brew and enter Pale Mild in the "Historical Beer" category. Finding examples in the marketplace can be challenging, though not impossible: Epic's "Mid Mountain Mild" is a great example. They usually feature ingredients that most homebrewers have in reasonable quantities, too.
Hard to find, historic origins, easy to drink, and straightforward to brew: sounds like a perfect homebrewing style to me.