Not only am I interested, I've an old thread that actully calls for exactly this.  Alternatively, a set of command line POSIX tools that can replicate functions of the bitcoind itself are desired.  For example, a CL tool that can create a transaction from a local wallet.dat and then pipe that transaction to a file, another that can pipe in that file and interact with the bitcoin p2p network, another that can pipe received blocks to a file, and another that can pipe those block files into a local bitcoind as if it was connected to a network node directly.  These are the minimum tools necessary to build a completely network isolated bitcoind, unreachable from the Internet by any other method than a USB-drive sneakernet.  This is one lower tech way of ensuring a secure bitcoin savings account that doesn't touch the Internet ever.