I'm debating between between a Mini Fastrak Kohler 42 and the Sport Honda 48. The Sport with the Honda is new in the crate. The Mini Fastrak has been on the lot and is weathered. I'm only mowing .5 acre that is flat. I can buy the Mini Fastrak $400 less. So do I go with the better engine or beefier frame? Any comments on the Kohler engine?