noeclark, It appears that the toro ground master is not a very popular unit here on TBN...
I did a search to find that it seams to be a smaller width type front mower unit. Usually seen on large groundskeeping enviroments such as grave yards, around tomb stones etc.
If I was thinking of buying it ,I would check it out myself top to bottom, drive it, mow with it.... If it passed all that ,then I would see if and where I could get parts and maintenance supplies for it.
Toro makes some of the biggest mowing equipment I've seen along the same lines as the 117...
Hope this helps a little /forums/images/graemlins/smile.gif