Sixteen days should be okay. Gives you time to explore and maintain a comfortable pace. I'm not familiar with the raft so some of this may not be germaine. Things to note: Lake Laberge is notorious for its winds and high waves. If you see any white capping stay/head for first acceptable shore and wait it out. This may mean staying in camp for a few days. Don't underestimate this lake in bad weather. Stay along the east shore as winds will blow you to shore if they come up. Using the west shore can blow you to the middle making it difficult to get to shore. Know where the places are that you can put in. There are long stretches of rock to the water where landing is not possible. If possible use the Teslin River, thus avoiding the lake.

Know what you are doing when going through Five Finger Rapids. Speak to locals [drop in and speak to people at Kanoe People]. There is potential for real disaster if you take wrong channel.

Rink Rapids can be problematic also unless you stay to the right shore.

The rest of the river is fine. Another thing to know is how to get to shore in a swift current.

Have a safe trip and do your homework. May see you on the river.