A bit of a drive, but I'd highly recommend
http://www.jerrytucker.net
Chances are that it's just the front main seal that's leaking - the cover is probably sealed with RTV, which can leak, but not as likely. I'd be more suspicious of oil running down from leaky rocker covers. You might try cleaning everything up with engine degreaser and brake parts cleaner and get a fresh start at isolating the actual leak.
Welcome to NICO!
Heath