Sounds to me like Opie's had a really BAD experience with men sometime . . . They really need to educate themselves on screening for different breeds if they're going to refuse to let breed rescues assist
I'd love to work with you guys with Opie. Bet we'd have him confident and on the road to being a self-assured, social beast.
The key is his self-confidence, and that's where getting out and being social in non-threatening places with someone he trusts can be key.
Why don't you two PM Doc and talk to her about Opie and get her input?