[Premium-Rx] Desktop Rack Cabinet For Racal RA6790

[ToddRoberts2001 at aol.com]

Does anyone know of a source or supplier for a 19" metal desktop rack cabinet 
that would fit a Racal RA6790 receiver?  I would need something that would 
fit a 5 1/4" front panel (3 RU) and the depth would need to be 19" to 20" or so. 
Hammond makes a nice looking desktop rack cabinet with a 5 1/4" front opening 
but the depth is only 17.5 inches. I have tried looking at different 
manufacturers - Bud, Hammond, Premier but can't find anything really close to what I 
am looking for. I would like to find a current manufacturer. Apparently this 
size is very hard to find. Thanks for any leads. 73 Todd Roberts WD4NGG.