Im thinking of buying an existing local mowing business. The guy wants $4500 for a 12' Road Runner single-axle trailer, that's in pretty good shape, a 1994 Walker MTGHS, and two JD 21" self-propelled push mowers. The 10 residential and 7 commercial accounts come with it for free. He's shown me his books and what he makes for each account, none of which are under contract. One mowing cycle brings in $655, and he says in the last 3 years he's made $1500 - $3000 per month. The Walker has approx. 2100 hours on it and about 400hrs on a 2 year old engine. Is this a fair price?