I went to an Exmark dealer today to look at commercial 21" walk behind mowers. They had a great deal on one with a 6.5 Briggs Intek Pro engine. However, when I look the Exmark web site, they only show a 21" with a Kawasaki engine. Is the Briggs powered mower a discontinued model? Is the Briggs Intek Pro a reliable commerical engine? What should I expect to pay for this mower?