Ahah very cool... we take a trip every winter, sometimes even summer (northern hemisphere talk) but never called them honeymoons... I may have to steel this idea my friend, if you don't mind.

India is great by train! Though it takes some time to learn the ever evolving ticketing system.

That trip sounds like it would be anazing by the way. You should go for it, nothing is really ever "worth it" it will always cost too much, but it is definitively a good experience!