Vauxhall Astra Bertone mk4 coupe 2001 for parts or repair

Vauxhall Astra Bertone for sale. It is a beautiful rare car, I had it for 6 years.

I changed timing belt last year in September at around 180k. The engine light is on, possibly lambda sensor needs changing. I haven't done any repairs since last MOT as decided to upgrade to a new car.