If you're thinking of doing something for Hephaestus*, then you might consider roping in the other disabled smith gods** - it's almost a motif ;) And googling that turned up the two of us from your 2011 BADD post - http://platosnightmare-aesopsdream.blogspot.co.uk/2011/05/lame-smith-god-and-two-sides-of-myth.html (which I'd vaguely remembered, but completely forgotten was by you, or that I'd commented).

* I looked at that picture of Hephaestus on the donkey in your essay, and my immediate reaction this time was 'that's either phocomelia, or Proximal Femoral Focal Deficit' - making me wonder if the painter/potter had painted it from life.

** Wayland's the obvious one, but I've got a niggling feeling there's a West African one as well, and there's definitely the Egyptian Ptah (not always shown as disabled, but there's an alternate representation of him with dwarfism), who the Greeks syncretized with Hephaestus***. Googling Ptah and disability threw me this link https://books.google.co.uk/books?id=FIGiAgAAQBAJ&pg=PA152&lpg=PA152&dq=ptah+disability&source=bl&ots=YFHGr1V_Cs&sig=T-xMwe7so2-0opcBnVHEF_f4Bfk&hl=en&sa=X&ved=0ahUKEwjfp_q68OjKAhVCjg8KHTMXBoMQ6AEIJTAA#v=onepage&q=ptah%20disability&f=false and I'm fairly certain I've never seen the story of Nimmah before, but that Babylonian myth is brilliant!

*** http://www.ncbi.nlm.nih.gov/pubmed/10076885 (wince for the use of 'buffoon' in utterly ableist manner in the second last sentence, but the rest of the abstract is fascinating)