I feel much more confident writing a hex crawl now, after doing some research on hex crawls that work and ones that don't. Obviously creating any kind of a railroad situation is not a good idea. I may go and pick up the sandbox companion at drivethrurpg as well, just for a bit more inspiration.
The one thing I'll have to go back and work on is the Telchines class I created specifically for the adventure. As well have a re read thru of Minotaurs & Mazes. (Its a free download BTW)
Below is a mockup of the map of the Island.
Below is a mockup of the old school looking cover, which I'm going to tweak! Thankfully over at Karens Whimsy there's a ton of free greek god artwork I'm going to have some fun with. I even managed to find a very slick greek font :) It's all coming together! now more research, stay tuned!
Don't worry I'm still working on the enormity project! I've just decided that I'm not scrapping this idea, cuz there's a nugget of an idea there that's going to be cool I think.