Easiest way for ROM-dumps on the HP-41

[HP-Collection]

To make a backup of all my HP-41 modules I would like to get the "easiest way" to do that.

Layout:

HP-41 with plugged in module in port 1, USB interface to directly copy the complete Port 1 onto the computer and convert it into .mod......

Hardware: Meinderts MLDL, Diegos USB-41 (unfortuantelly Geirs "pc41" does not transfers entier modules), HP41CL (only serial, no USB), PIL-BOX of J.F.

Someone interested in writing the software? I would prefer the USB-41 because of the size and prize.