It would be good if you can get the serial#---this will tell the year and if the main clutch is removable thru the top cover plate. You will also need to know the condition of the undercarriage as these components can be costly to replace. It appears to have the larger solid front idlers and good grouser bars.
It does look as if it is a late model, so chances are that it has the split coupling...👍
Hmmm, on looking at the pics again, those grousers look a bit tall. I'm wondering is somebody didn't weld on some extra bits to them. Still, I'd be negotiating with the seller.
a D2 is a fun little machine, not much in the big work or grading department, I would sugest a D4 or better for real work
That being said I listed my D69U on Craigs list, I will list it here also later today