If the following W140-S320L practically was in a mint condition, someone in Canada, please give me an idea of how much money it will cost me every year?

I plan to run at about 20,000km each year for daily use. Thanks!
1999 Mercedes Benz S320, 130 miles, Fully loaded, immaculate condition.
The vehicle is registered in Detroit- Michigan however right now is at my house in Toronto. I will arrange the transport if required.
It seems like that it has Xenon head-lights.
