Re: Pig Skin - being a chemist, Real Chef (TM), and having spent time in PA..
I did a skin-wrapped "modernist" remake of hog maw a while ago, being generally disinclined to eat pig stomach (yes, I tried it). It's pretty advanced, but there's no special skills and no materials the average Joe can't get on Amazon.
Prep whatever stuffing you see fit, be it this recipe or your Nana's. Wrap it up in skin with a healthy bit of fat...but instead of sewing it up, seal it with transglutaminase, aka "meat glue", aka Activa RM - available on Amazon for >$20. Ideally vacuum-seal it, but tight plastic wrap will work. Let it set in the fridge for 36 hours, then confit in a large pot of oil in the oven at 250F/120C for 3-4 hours, or circulate in oil at 80C for two hours, if you're cool and have a circulator. To finish it off, ideally deep-fry it till it's crispy, but a 550F/285C oven will also work.
It's sooooo good.