I have a chance to buy a gravely pro 150 50" with a kaw. for around $900. It is 5 years old but hasn't been used for 2 yrs. Has about 250 hrs on it. Comes with a mulching kit. any thoughts? Is this a deal? Has been prepared for storage-ownner thought he would use it but went to riders. MY clients are asking for wb and not to use riders-go figure.