I still have 33 yr old Murray with 18 hp, Vtwin BS engine in it. Still going strong, just had to replace the carb coz it clogged up due to non use. So, BS engines are not all bad. Besides, buying them help this US industry.
Get a zero turn with Kawasaki engine in it. Ikon is a big box brand thats made by same Gravely machines, solid and dependable. The difference between a zero turn vs a riding mower is night and day!! A little pricier but its all worth it!!