How big do you want to go? I would personally go larger, no offense but that just looks like a regular lawn mover with a bucket and different tires.
I would get something along the lines of this
http://www.deere.com/en_US/ProductCa...argerView.html
As for tractors I personally dont own one but would love to
Here is an Oliver 66 I help restore
and it is action
see not so much resto. More of a trans and engine work