Forward planning pays !
Having decided to build and fit the cockpit before constructing the scratch-built wheel bays, I checked the parts, and where they will align inside the fuselage, which revealed a small problem.
Due to that stupid mistake in cutting the port side of the nose in the wrong place, resulting in a reinforced internal joint across the gap , this will slightly foul the forward, resin bulkhead. Therefore, a notch will need to be very carefully cut in the bulkhead, and a small section of the edge will need to be trimmed back, to allow the part to fit over the reinforcing strips. The resin bulkhead is thin, and there's not much room for error, due to the locating sockets for the cockpit side frame, so care will be needed when doing that job.
Fortunately, the area in question will be hidden from view, so the notch will not be seen once everything is assembled.
Also, the top edge of the rear bulkhead frame will probably need a little modification, to allow it to fit neatly with the armour plate at the front of the 'dog kennel'.
I'll tackle this in stages, in between sessions on the Spitfire, and post pics of the relevant parts at that time.