Aloha Katrinka, 
I live in Volcano HI, quite recently got involve with Magrav unit making, few days a go few other friends we got together build "some larger" Magrav coils see some pictures here.  These twice larger  coils then what other people makes these.  I know at least  4 other friends that  quite interested in this subject and they'r all local here. Maybe we can get together and talk about the subject?
Mahalo, 
Mehmet.