I did one on the IS back 06 same unit you did. I did all the servo and vacuum canister under the seat. Pain in the ars in the fairing, I found it easier taking tank and air box out. You have to any way so why add more work. I did 1.5 x 4 inch pvc canister. I left no slack in the servo chain. Route the servo line in a wide arc. Make sure you get the one way valves the right way, and yes a canister works better then not. My opinion.
That seems like the way to go, not a fan of the clamp type. May be a winter project.
