Have you tried 'Hawks 3rd Gen' in Easley SC?
Bruce and Steven over there are god fellas to deal with. Your other option is to troll LS1tech.com and see if one pops up used.
Thats not a cheap hood to make. I guess a 3rd option would be to see if you can buy a OEM style flat, 'glas hood and the stinger and using resin and mat, make them come together on your own. Certainly a ton of work for most guys, but its not insurmountable and if you did a good enough job, you could pull a mold from it.