Pelageo,
I recommend using Two Spirits, LTD in Mount Ida (
http://www.twospiritsltd.com/). Frank is the owner and he's a great guy. The 4 mile stretch downstream from his place is the best fishing on the river with the swiftest current (no coincidence there). The last few times, I've actually base-camped at Frank's place and fished the 4 mile stretch above his place and/or the 4 mile below each day. The stretch below could take 2 hours or all day depending on how hard you fish it.
If you are set on doing 3 days on the river, I'd go from Oden or Pencil Bluff to River Bluff (~20 miles). Don't go past River Bluff as the river widens and slows up with less structure.
PM me if you're interested in maps with some good fishing spots marked to spend some extra time on.