I have a 110 you'd love (but it's not for sale!). Look around for a Goerz American Optical (usually abbreviated to Am.Opt.) Wide-angle Dagor 4 3/8" f8. Light, compact, almost covers whole plate wide open. Mine is in an older Rapax shutter, but they're actually pretty decent if you exercise them regularly. You could probably get one put in a Copal 0 if you must have a modern shutter with it. It is small enough I used to be able to reverse the lensboard and leave it mounted inside my Shen Hao 4x5 when closed up, with no harm to the camera or lens.