How much do you think a 48" Walk Behind SCAG(1998)-18hp and 36" Walk Behind SCAG(2003)-17hp should cost. The 36" is in almost perfect condition and the 48" has about 3 or 4 years left to it. They both are belt driven and the guy is asking $3,700 for both of them. What do you think about the price of the equipment? They both have velkes too.