Can anyone identify this wall unit?  

PS Systems
Denmark, as far as I can see..
Has it got U shaped clips behind?
These usually hang on verticals with horizontal dowels threaded through

Yes
Yes, they do have the u shaped hook and there was one lone rod that comes with it....
Thanks for your help.

Looking at the photos again
you have the uprights, you just need round metal dowels to fit through the holes in the uprights!
You checked all the drawers and cupboards to see if they're there somewhere ?

any ideas on hardware?
Just wondering if you have any ideas about tracking down hardware.....

how to keep the shelves up?
I can make some rods for the units but the shelves need some kind of wire to support them.

Yes
they need an angled steel rod with opposing turns at each end..if that makes sense ?

Hmmmnnn
The shelves appear to have holes in them as if the rod is supposed to go through it.

PS Systems
It is tough finding anything on PS Systems. Any idea where I could look?

This
is a Cado one, the PS ones have the same as the end of left hand side, but on opposing sides.
I'm sure they could be easily made by a metal worker if you can work out the dimensions needed
I'd do it for you- but don't have any PS anymore

Few things on
Google
http://tinyurl.com/ygfbqw7

Thank you
I can buy this set as is for $750.00 US. Do you think it's worth it considering I'll have to have hardware made for it? It's in like new condition and huge....
And thanks for posting the pic.

Just remembered
some of the PS shelves I've had had a thread and a nut at one end that goes under the shelf to hold it.
a little bit more complicated to make, but not beyond the average metalworker

I
have little idea on the US retail scene or how much the components would cost to manufacture, being from the UK.
Maybe someone from the US could help you better- there are some pretty well-informed people here

shelves
Yes, I think these shelves had a screw-type piece on the bottom. As for the cost, it was shot in the dark. I really like it so I may just roll the dice.
Thanks again for all your help!