Might advise you to save the cash for the trip (adventure) up north to use while you actually wait for a gig than on a couple of hours in a 210/bonanza/lance.
Sure if you have the cash to burn go ahead but no sane chief pilot is going to throw you on the line without any line training anyways. Any really 5 hrs in any aircraft isn't that helluva lot anyhow.
The biggest cessna i had flown was a 177 before the 210 and really its not that huge a leap. A plane is a plane. Any plane can kill you.