z, try over at these two sites:
largeformatphotography.info
apug.org
There won't be a lot of courses out there, as for digital photography.
If you are in a hurry to get started, read the articles on the largeformatphotography.info main page, then go into the forum, proclaim yourself a newbie, and ask if there's anyone around in your neighborhood. Then try to arrange a meeting - bring your favorite ethanol-containing fluid, if appropriate.