came across casco bay.... by the looks of their site, this seems like the proper choice
https://cascobayfurniture.com/pages....ath=27&pID=224

5/4 solid maple frames
8 way hand tied springs
they offer the mont blanc leathers I like
included delivery puts my 96-98" sofa about 4000-4500 depending on which model I get

almost seems too good to be true