Sierra I presume?

There's a decent looking (Although the interior is horrible) Moonstone 2wd Saph on DoneDeal for €10k
https://cars.donedeal.ie/cars-for-sale/ford-sierra-sapphire-rs-cosworth/10126442

There's also a Black 4x4 apparently original Irish car!
https://cars.donedeal.ie/vintagecars-for-sale/sierra-cosworth-1990-4x4/10391705

VRT is supposed to be around €3k I'v heard.

Be careful if buying an Irish reg one, There's very few that are actually VRT'd correctly due to cost!