Pete,

Must you complicate everything?
The whole point is to apply "pressure" so you consolodate the laminate and remove excess resin. Vacuum is a conveinient way to get about 14lb/in. You can get 80-90 out of cheep home compressor if you can manage to build a vessel to hold it. A pressure chamber is a lot more complicated than tacky tape and plastic film, but it is possible to achieve the same net effect.
Rollers and sqeegees work to some extent with open molding, but if there any loft to your fiber pack it is extremely difficult to get a good fiber to resin ratio.