I may not understand what you're saying, so please correct me if I am wrong. One of the issues I have with this sort of construction is the the core is 1# EPS. It has the rigidity of FRESH sponge cake.
I can only pull to about 10 inches of vacuum, beyond that and the deformation of the EPS is SPECTACULAR!
Drawing through the stupid e.wood seems to require about 28 inches.
I believe that what you suggest would effectively crush the eps.
Maybe your process could be used used, just without the EPS requirement. As below:
1) Wet the opposite side
2) Lay that onto a waxed plywood, with some peel ply in between or maybe mylar so that there was no resin loss other than into the stupid.wood.
3) peel ply on the dry side with bleeder/breather
4) Affix the port so that is on the dry side and pull a vacuum to as much as the pump can muster.
I think that process achieves your suggestion.