Using Koni-Omega close-up accessories on Mamiya Press?

[roger krueger]

Does the Mamiya Press system have any close-up accessories like the

Omega has where a lens diopter is attached to a bigger lens that

"fools" the rangefinder? What are the chances of one of these Omega

close-up accessories functioning on a Press. I realize I'd probably

have to get a filter ring adapter, and maybe even modify the link

between the lens diopter and the rangefinder adapter, but, with

a hacksaw and some creativity, could it be made to work??