A hired gun, like ronk suggested, is the safest way to go. You and your Bro will have some $$$ invested by the time he gets here. Economizing on on a guide service or skipping one is "penny wise and pound foolish."
Since he is a tyer, here's a picture that I call "Flies That Work:"
I won't leave home without these, a rubber bug, a Stealth Bomber, a Hairy Fodder, and Lefty's R/W. OK there is one more. Add a blockhead or Lefty's Bug. Good chance the guide service will tie one of these or something like it on your tippet based on "conditions."
"Fish are on the top , the bottom, or somewhere in between."