it's a 2001 kubota zd18 with 900-1000 hours. it has the 3 bag bagger as well. i've used it commercially and i'm thinking it will make a great mower for a homeowner. i'm thinking of selling it for $6000 i had a offer from craigslist saying he would offer $5k i replied saying i was firm on my price of $6000 he said he was still interested. should i be asking more for this machine? or should i try talk this guy into buying it for $6000?