The epc is dealers electronic part catalog. This comes very handy because you can call your partsupplier and they will have the exact same picture on their system. It's very easy to order the right parts from it when you know what you'll need. I will try to find it for you. I only got a paper copy but I can scan it.
When I changed the angles I started to take it all apart. I found both angles crushed in pieces. No wonder it didn't slide very well. In the same run I took all the nessary part numbers from what was left of them.
You should also order all the rubber bushings for it if you decide to order new angels. Mine were very worn.
'87 MBenz 190E 2,3 8vlv