There were many W124 Sportlines made.
Our workshop recently changed over an engine in a W124 CE 300. 24valve model. Have had trouble sourcing the correct ECU for it. Car has been idle for three months.

Here's one for sale in Australia

http://www.carsales.com.au/used-cars/private/MERCEDES/300_CE-24/details.aspx?R=7458156&keywords=sportline&PriceMax=100000&__N=1090+0+418+1216+834+285+257&__Ntk=CarAll&__Nne=20&__Dx=mode+matchany&PriceTo=418&Make=MERCEDES&__D=sportline&seot=1&silo=1003&__Ntx=mode+matchallpartial&__sid=125D1EE754D1&state_id=0&State=All%20States&__Ns=pCar_PrivateSpecialFlag_Int32|1||pCar_ImageCount_Int32|1||pCar_LastModifiedDate_DateTime|1&distance=25&Cr=2&__Ntt=sportline&trecs=4