ceh,
Are you referring to a Yanmar ym1300d? If so, try posting in the Yanmar forum...you'll get a better response. I'd stick with a 36-42" rotary cutter and 42" box blade. Don't know about the rake. Either of these tractors would be fine for 2-3 acres as long as you are comfortable in terms of leg and foot room. The 1500d is a little heavier, sturdier, and easier to get parts for. You will want front weights for use with the mower.