Reinhold,

Go for it, I'll take a 4-5 "Lens Garage", Beseler lens boards.
It will house my 50mm 2.8 Apo N, 50mm 2.8 G Mural, 80mm F/4 Apo-N, 150mm 5.6 Rodagon = Sold!

Leave a little extra room in case I swap a 50 for my 90 F/4 Apo.

Mine will hang vertically on the wall...