i will post this in our FB user group, there are at least ten board layout artists in our group who can do layouts...
the simplest solution to balanced in and balanced out stage is the use of interstage traffos from sowter, jensen or cinemag edcor or hammond...a 10k:10k traffo is good to use here...
i bet Edrel Sison can make such traffos too using the z11 cores...