Doepfer

Folks,

I know that several (at least) of you have built cabinets for your A-
100s.  I've filled 2 6U racks and can't afford that route anymore, so 
I'm going to build a cabinet (and then sell the racks, stay tuned).

The DIY page on the Doepfer website references a source for the rails 
(www.proma-technologie.de), but there are many types and it is not 
clear to me what would be the right option.

Any advise?  Specific manufacturers/part-numbers? What have you folks 
used?

Regards,
Paul (Colorado, USA)