shopping for a Sprinter Van

I've been on the lookout for a Sprinter van for business, and recently found one.  However, it has some issues which look like deal breakers.  This one is a 2002, Freightliner, with a Mercedes 5-cylinder Diesel engine.  It has 260,000 miles on it and has had a rebuilt transmission, new water-pump and radiator.

Here are some pictures of the frame area, where the rear shock mount is located.

Here's the other side without the damage.

Here are some other pictures, showing some of the rusty areas and overall condition.