I am a shoe repairman, but also do some lawn mowing in the summer season and snow blowing in the winter. I presently have a Kubota G1800 AWS with a 54" deck. I find the tractor is a great mower, but for some lawns a bit heavy, and leaves more compressed grass from the tires than I like. I have been looking at other options, but not sure what I want. I like the fuel efficiency of the diesel engine. Most of the lawns I do are smaller lawns, and some are rough enough a smaller deck might give a better cut without scalping. Is there a commercial quality mower with a diesel engine and something smaller than a 54" deck?