Celtic Adventure Path

So, I've been kicking around a concept document for a celtic-themed adventure path for a couple months, now. Partly because Player's Handbook 2 is due next month, but mostly because I like the idea and it really hasnt been done before. Initally, I wanted to pitch this idea to Wizards of the Coast, but I dont think they are looking for entire adventure paths at this point in time.
I'm curious if anyone that reads this has any advice on what I should do or go with this. Red Jason thinks that lulu might be ideal, since its print-on-demand. If nothing else I am thinking of just wrapping it up in as neat a pdf file as I can and just hawking it for a buck or two per adventure.

Any other suggestions?