I am looking an a frontmount grasshopper with a 52 inch deck and pos. and extra 60 inch deck, non powerfold, with 15 cub metal hoppers I need a mower that can power through tall and short grass, and bag all the time, will the gas kubota 29 hrs be enough power or should i run the 25 hrs diesel Fuel savings? Life Longevity" Maintanence? Please help so i dont buy the wrong unit also, i am planning on get a fuel tank for my business, and am wondering what fuel discounts tend to be for buying in bulk, this will also determine my choice Diesel in Toledo is 2.90 a gal gas is 2.40 do the math! what is the better buy???????