Marantz Model 18 Woodcase Dimensions

Hello,

i´m a marantz model Eighteen owner since about 3 month.
And I want to have the original woodcase.
But all model 18 owner I know have no woodcase.
I never saw that someone sell only a original cabinet on ebay or another sales market.
So I think I will make it on my own. And now I need all the ecact measurements to rebuild it.
Is there anybody out there with an Eighteen plus woodcase who take all the dimensions for me?

Best regards
Andi