I ended up getting the Katmac kit, they were Depo lights and they worked (and are still working) excellently. The main bulbs that came with were too-high wattage to use tho, so I bought some standard sylvanias. The connectors and blank panels were aftermarket, tho quality seems fine. The Depo clear side markers were not up to the headlight standard of finish so I kept my old amber ones. ('real' euro cars of this year have this set up anyway so I thought I'd keep it 'authentic)
All-in-all I'd buy the Depos again seperately, and get the connectors and blank panels at the dealership.
I think Katmac sells TYC now, which I heard were not quite up to Depo. Can't say for sure, could be exactly the same for all I know... I do know it's the best upgrade I've done to my car, safety and looks-wise. When I see it next to another 124 with DOT lights, it looks loads better and years younger...