I bet Baker will be in good enough shape. Fisher Chimneys is somewhat of a question mark. Keep your eye on CascadeClimbers.com for trip reports for Shuksan. I know Sulphide glacier has been climbed a couple times. Call the ranger station in Glacier, WA before your trip to find out conditions on Fisher Chimneys. If conditions are bad (snow filled, wet, drippy) you can always switch to the Sulphide. Not as interesting a route IMNSHO, but a viable alternative.