The first thing to do is to stop.
Hasselbalds can be a bit counter intuitive - such as the linked shutter/aperture rings. And having both body and lens shutter aligned when mounting lenses. It's great that you want to help your friend sell her cameras, but please read the manuals for body and lenses first - after all, they are still her cameras. They should be available online.
Hasselblad lenses can have very different values depending on which series (C or CF, T* or not, black or chrome). Backs can have differing values depending on whether they're the "A" back or "C" back. A back with mismatched insert and shell will have slightly less resale value than if matching.
It's helpful to look at KEH's site to get a sense of the relationship between versions of the same item and price (as well as condition and price).