That is the best article i have read on lighting in a while, and i have read a LOT (i have no life...lol)

Just remember to leave yourself maintenance access areas and you'll be fine. Waterproofing shouldn't be that difficult. I have seen it done many times and there are numerous options. If i were smart enough to post a link from another forum on my phone, i'd link you to a couple good build threads, but alas, i am dumb when it comes to my smartphone.....lol i have yet to do one in that style, but i'm still relatively young, so if you have any questions ask away......lol