Thinking about buying a 616

Here is a link to the ad http://savannah.craigslist.org/grd/4852148646.html

Yes, may have a different motor, and looks like the sheet metal has been altered some to accomodate. See how well the changeover was done. The original Onan 16 hp. may have failed, and the unit was repowered with a Kohler, Briggs, or Honda.  (total Onan overhauls are very expensive). If done correctly, this is a perfectly usable fix.  (if you are not a stickler for original only). I had to pay 2800.00 for my 620 with a belly mower, blade and moldboard plow, so if the tractor is in good shape, the price may be in the ballpark, depending on what these units bring in your area.

There are  mowers for the 3 point on the back of these tractors as long as there is a pto.  Original mowers seem to be quite expensive.  If no pto, you can pull a newer rear mower with one of those that are powered by an engine mounted on the mower.