I found this:
http://www.keh.com/camera/Hasselblad...90340010?r=FE#

and it sounds like something that would be very helpful to me. I am very comfortable with the 35mm style viewfinder camera, and am finding it harder to use the WLF for portraits on my 500C and 500CM.

Would this benefit me?

PS. I have trouble seeing at a distance, so the closer the image, the easier for me to focus.