I'm not an experienced programmer, more tinkering than anything, but I suggest that you pass these messages onto some of the I2P devs on Twitter (@i2p, @echelon and @str4d would be able to help you the best with this).

I'm actually trying to bundle I2P with a portable version of Seamonkey with less than exciting results. I was also hoping that there would be some open source equivalent to Bittorrent Surf available to bundle too, however the only plugin that's similar apparently uses a proprietary network.