Philip,
Ther is not all that much difference between the Mk VI and Mk X cockpits, but if you can get hold of the SAM Publication "Beaufighter" Data File book, it has some excellent color drawings and detail pix of the cockpits.
If you are going to build the Beau as the Night Fighter version, the cockpit and radar operaters station are Black, not the Grey/Green that Tamiya say to use, also the reciever antenia's are not shown on the kit instructions {these are shown in detail in the SAM book} Model Master make a Cockpit Black in there range of paints.
A few pix of what I was explaning about the antenia's that are missing, from the instructions, also I used Humbrol Matt Black on the canvas area's and Xtra Color 'Night' as the finish on this subject.
Hope this helps a little.