ob rossi 7.5 and two k&b 11s

I have three OB motors that I'd like to know what a decent price would be for each one. Not lookin' to break the bank and not lookin' to give them away. Just looking for a fair price. First 7.5 OB Rossi probably around 4 years old but a little more than a gallon of fuel run through. Ran the...