They always say the simplest solution is usually the best, so in that case I've decided on Tim's air-hose-linked weep holes with digital timer....figured it would also add to the overall aesthetic, too

I really ended up going with drop-in pockets & a gouged channel at the bottom. I've been leaning toward copper option for the flashing and after reading DL's post, I'm re-convinced to shell out for some good function and beauty.

Thanks again to everyone for their input and ideas! It's starting to look real.