Reliability Opel Omega

Ser’s people, because of an accident I urgently need a new mobile kit.. First of all as cheap as possible.. I came across a Omega 2.0 16V in my search.. EZ 1996 and 136tkm.. How about the cars with the reliability? Something you should know absolutely? ZKD? Timing belts? So any particularly vulnerable parts? How about the Omegas with rust? A few thousand kilometers the box should already hold.. Cost should he 3700€… Here’s the link: Please click… Is this actually a 4 or 6 cylinder? Would be nice if I could get a quick answer.. Greetz