Planned purchase of a 9000 already written off

Good morning.. I’ve re-registered here today to profit from your experiences and learn of course. As a background I specify a planned purchase of a 92er 9000 CD ?….. The vehicle is in a desolate state (optically seen) engine with its 250t kilometer running automatic switches all gears through…. Standby time about 1 year (more)…… I would call the color dark green, rust on the wheels but not through, the interesting Ver/Bemoosu ng give the old Swedes an idiosyncratic character…(Sorry)….. The equipment I would call complete : air conditioning automatic, e windows, seat heating, on-board computer (instead of the clock), leather…and more…. Let’s get to the problems : SRS light, on-board computer gets dark after about 10sec, driver door does not open, engine is grumpy (no oil change yet) climate does not work ( 134a) here and there is missing what (Tempomat ??) disk torn…..Check Engine registered at the ers my question now Is it worth the purchase Many greetings Axel