I'm willing to beta test this if you need someone.
But you can try to build a binary from the source files. My patch doesn't add any additional dependencies, so if you can build an original client, you can build a patched client.
Well, I can't compile anything myself since I messed up GCC some time ago on this install, but you could try building it on PureDarwin (http://www.puredarwin.org/)
Also, would you consider working on a bundled Bitcoin-i2p bundle which includes both programs self contained, only uses the daemon for the wallet, and starts and stops the service when the wallet is open and closed?