The Alchemist is probably a good text to do. I did it for a HW question we had on imag. journeys but its not very good (wrote it 2 mins on the bus
) and i'm doing paradise lost as my real related txt so can't help you too much...
I would focus on motifs and symbols (religious allusions maybe?) Idea of continuous journey, the fact that he wanted to travel the journey (his discussion with his dad), how he changed during his journey, the girl (looking forward to a resulting factor of the journey) etc. Define how it relates to a journey and its imaginative elements...
I would relate it to road not taken because its easy but if you are looking for a challenge try journey to the interior...
P.S. just because you cannot find stuff on the net about it does not make it a bad one to use! try and think yourselves too