Jim,
i checked in Agri-Supply...they do have smaller mowers, 47" and 59" I believe. I noticed, however, the HP rating for even the 48" model is 20-40 HP. I've looked at some other brands of similar size and weight, and those are all rated at 15-40 HP.
I'm wondering if my 18-19 HP yanmar will pull this thing--I'm also concerned about weight..it's around 468 lbs, about 240 more than my rototiller!! /forums/images/graemlins/shocked.gif
thanks