You're basically selling a lottery ticket with maybe "1/1000 odds" to someone feeling really lucky. It's not enough money to justify any kind of collections (formal or informal), especially since people've been heckling him (at no hard gain, so far) with his physical address, so it's truly nothing more than a gamble.
If you're lucky, a BTC.0003775 price may get some bites, and I really don't say that to be an ass, but as someone who's bought and sold bad debt here. Your only chance of getting what you're asking is if the defaulter buys the debt back at that price for the discount, but he's obviously uninterested in paying anything.
Wow, .0003775? No way. I would consider .17. But thought .22 was very good deal as it is.