I know bcr229 keeps them, hopefully she'll chime in. I keep macklots pythons myself, Similar but larger.
My Macklots are very food crazy and will go nuts on feeding days. They were pretty snippy as babies but are a bit more mellow now with age (but you still have to watch them, especially if they smell food) I haven't bred them yet so I don't know what kind of babies they would produce.
Sorry, I don't know of anyone currently breeding Savu's