You can find the very start of our journey on this forum, as I stumble over this place when I was in need of help and didn't know what to do. The link in my signature will direct you to where I wrote about everything. Things have progressed alot since then, but we managed to pull it off and are happy right now. The perspective is that of a poly involved with monos, but maybe there is something of interest for you as well.
Facts: 30, female, bi, v-type relationship with Sward (husband, straight, mono) and Lin (boyfriend, straight, mono), poly-fi and co-primary.