Just finished sorting a similar issue on my own bike - although probably not much help as using a c/f undertray but without the catch tank (one of Pete's prototype's - basically a corse unit without the catch tank).
Big issue was locating the ecu to clear the 'hump' of the undertray/fit under the seat unit. Then to fit it within range of the ecu loom (I did not want to start releasing the loom and relocating it/extend wiring) although this is obviously poss going by pics you show, and if Jasper and Guy done it.
Then to fit everything else in there - shock remote res and power block. Wanted a solution that meant adding as little extra as poss ie no mounts, etc if not needed so used the tray to mount it all - minimal approach!
Johnny


