2005 Scag Turf Tiger 52" 27 hp Kohler Is buying used the way to go???

In the market for a zero turn and everywhere ive looked ive been referred to Scags for their quality and durability. Ive been dealing with a Cub Cadet LT1045 that has just over 400 hours and has been a nightmare basically since it was new. Im wondering if a Scag TT with a 27 Kohler is a good mower to buy used. Just over 300 hours which is very low for being almost 10 years old, with a price tag of $6500. It seems like a lot of money for a mower that age but with the low hours I think it should be worth it? It seems like a lot more people lean towards the Kawasaki engines but Im not sure why because both seem to have minor issues like anything else. Is there any reason I should avoid the Kohler Command Pro 27hp? Also, are the decks the same gauge steel as far as thickness goes between the 52 and 61 inch cuts in 2005? Thanks