You're crazy.... Haha.
Kidding... These WTB threads don't work too well. Go on active search my friend. Its like going on a f***ing Lord of The Rings quest trying to find a Blackmachine.
I understand the Blackmachine stuff (since you can't even buy one new) but no one usually sells their .........s especially custom built ones either. Best bet is to e-mail Patrick. You can buy them new and have have it in less than 2 months. He also has a ......... 6 available for sale. If you want to find a ......... that's where to go.
Patrick has new economy H6s too...
Hope I helped.
If you are set on a blackmachine... well keep on looking brother. It took me awhile but its worth it.