Rufus is going to have to be a middle name if used at all (previous threads,but basically someone else has used it)
Siblings are Skye and Arlo and surname is double barrelled (P e r r y - G e o r g e)
If the baby is a girl,we're pretty much settled on Flora 
Osbert- controversial/marmite perhaps,but gives nn's Bertie or Oz 
Caspar
Digby
Asa