Seriously, I would start it OUT OF my own home.

It would start at a scenic overlook, or somewhere that you can see nature and God's creations in all of it's glory. Bring lawn chairs and hold your ceremonies at dawn or at sunset. Invite friends and family, but let them know that everyone is welcome.

Church isn't a building. Religion isn't confined to an indoor space. In fact, people get sick and tired of that. Break out of the normal. Also, forget the costumes, the lectern and all of the usual church trappings. Jesus didn't need those things, and he was arguably pretty successful.