Thank you guys for the feedback, I will try getting a decal list from Doug again, but last time all my attempts were in vin. Communicating with him is like sending messages via pigeons in the dark ages of Europe :-/!
If not I will probably go with Richard idea of using upper surface 5 colour Lozenge and spray it with darkblue or put it over dark blue surface.
I even considered buying those Staaken decal set as the coours, while different, are quite closer to the actual thing than the Roden's interpratation!
Still I hope that someone wil shout that he stashed a Gotha decal set and won't need it
Best regards,
Sasho
PS: its about time WnW produce a model with night lozenge camo, so producing aftermarket decals will be profitable enough for Aviattic and/or other decal companies to come with such decals.