Ok, it ain't Doepfer, but here's my system:

http://www.cyndustries.com/gallerypix/gall_les.jpg

The lower two rows are housed in a custom made "Anvil" style case I had
made for me by Clydesdale Cases, a Canadian Company.

http://www.clydesdalecases.com/

I sent them plans/measurements of exactly how I wanted it built and they
had no problem matching my specs. If you lay it down on its side, it
looks pretty much like the one here except that I've got a locking lid
on the front *and* back and no handle:

http://clydesdalecases.ca/images/computers/computers2b.jpg

You can plainly see the lid latches on the left and right of the case.
The mounting rails came undrilled - I drilled them myself. The front lid
has enough clearance inside that I can lock it on with the unit still
patched, which I sometime do for session work. I'll have the client come
here for patching, and then just slap the lid on to transport it to
whatever studio for recording. I'm pretty small myself, so I use a hand
truck to move it around. It's roughly 38" wide, 20" tall and 14" deep
without the covers on. The covers are around 4" deep.

I'm using two power supplies, one for each row. The supplies are
external and are mounted in Army Ammo Boxes like these:

http://www.surplusandadventure.com/ishop/800/shopscr2112.html

There a 4 pin male "screw-lock" type connectors on each ammo box and two
matching male connectors on the case with matching female connectors on
the cables. They lock down nice and tight. If you look carefully right
above the Doepfer Ribbon Controller, you can see one of the power supply
cables terminating just behind the lid latch.

The case is built like a tank, and the silver metal plating on the
outside is not only tough as nails, it make for great RF rejection as
well. I spent less than $300 US for the case and maybe another $300 for
the Power Supplies. The Ammo Boxes were about $20 at the local surplus
store. So, I've got a little over $600 invested in everything except the
modules.

I made three mistakes, which I'll happily list here so nobody else makes
the same mistakes:

1. It's too deep. I could have knocked a couple of inches off and it
would take up less room when transporting.

2. I didn't set the mounting rails far enough in. They should have been
maybe two inches deeper set than they are. This would have provided a
little better protection for the knobs. I've never had an accident though.

3. Drilling the rails was a PITA! Next time I'll get somebody else to do
it!!

Wasn't hard to pull this off. A very similar case could be done for
Doepfer systems, just scale the size down a bit.

Cheers!

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Les Mizzell