This one is located near me in Sweden. Its a classic w461 290GD from the swedish military service. In this case a service vehicle for the Air Force. The owner has added a lift and Hutchinson rims. Thats it I think.
Generally these cars are low mileage G:s in very good condition because the army / air force service them well. Most that I have seen were without rust on body and frame, but I haven't inspected this one personally.
They usually have a webasto heater installed from the factory.
Upside with 24V is less sensitive electrical system when it comes to earth / ground problems, oxidized contacts etc.
If the seller is serious there should be a full service book with hand written mileage available since the car was delivered to the Swedish Air Force.
Price is above what these cars generally sell for in Sweden. But the condition is also above what we usually see.