Don't ever recall seeing any engineering style drawings published for it if that is what you are looking for.
First question is at what point are you seeking information for? There was the initial setup and then the aircraft went through a modification process in autumn 1944 before being shipped to Australia.
The other day I created a high-detail 3D model of a De Havilland Mosquito FB Mk VI. Next I would like to convert it into some more exotic types, like the Highball version and the one with fuselage-mounted dive brakes. I'm just lacking good drawings of such experimentals. Would anyone be able to...
www.secretprojects.co.uk
Edit - also this from the SAM Modellers datafile on the Mosquito with the same diagram
The weapon's code name was Highball with trials taking place simultaneously with Upkeep the dam busting weapon. 618 squadron based at RAF Skitten trialled Highball at Loch Striven and elsewhere. It was never used operationally and trials continued post-war.