[GreenKeys] Dolly for "Single Magnet" reperforator

[Duncan M. Brown]

The AWA Museum recently acquired a M14 "Single Magnet" non-typing
reperforator (thanks John!)  These units normally sat on a wheeled dolly
under the table of the M19.  

We don't have the dolly (and it needs it at ~50 lbs), but I figured I could
make something similar to the original, if I knew exactly what it looked
like.

Anyone out there have one of these and could give me some details about it?
Specifically: 
  - size of wheels?
  - height above the floor?
  - thickness of dolly?
  - method of construction: a flat plate or angle iron (hanging down to
form a skirt or sticking up to form a "cup" for the M14 to sit down into?)

Thanks,

Duncan Brown, K2OEQ

AWA Electronic Communication Museum
http://www.antiquewireless.org