Exchange HA damper NivoLift for “normal”

Hello all, I drive an Omega B MV6. With this car the rear shock absorbers are designed with automaic height adjustment. My shock absorbers are defective and have to be replaced – the FOH demands the smallness of 230 € per piece. In the accessory trade I did not find a suitable comparison model. Therefore my questions: – Can I replace the Nivolift dampers without problems against standart dampers or do I also have to adjust the heeling? – Are the original dampers ir gendwo in the accessories trade WITH Nivolift? Thank you! Konstantin