Honestly, if you can get a full refund, I would head to the upper French. Many lodges to choose from. I've fished the French both above and below the Chaudiere dams for 30 years. Probably well over 75 trips. Fishing has sometimes been tough (it can be on a 3 day trip), but is usually quite good. Walleye, Bass, Pike and Muskie.
Lodge possibilties:
1) Crane's Lochaven ( my personal favorite....talk to Sue)
2) Chaudiere
3) Lunge Lodge
4) The Tilted Toque (Used to be Casa Blanca...went there for 15 years).
5) Totem Lodge
6) Breyer Lodge
7) Wolsey Lodge
Also, you might take a guide first day. The whole friggin river looks fishy.....not the case. Crane's has a fleet of pontoon boats ( sans covers) that make for very comfortable fishing. Includes a wonderful shore lunch. Tell the guide you'd like to fish relatively close so you can fish the spots in your last two days. Walleye can be awesome. But, take some small topwater (ie Rebel PopR). Bass will nail them ( let them go), but pike love them as well. And....you be surprised at the muskie that will hit that smaller plug.
Now I wish I was going. Damn!