Is the mini z available with a 19HP 44" ? I see it on the web site and product brochure. But can't get a price. Can I buy a super mini 44 and a plain mini 52 and swap decks. I dont see the point of going 13 mph on a 44. ( I'd probably tip it over !) I'm not real sure I need to go that fast on a 52 but I like the seat and hyd coolers.