Value of clubs

I may not be asking this question in the right place. I just joined, so if I need to go to a different location let me know. I just bought a new set of I-5 pings they have the cs lite stiff flex as suggested by ping ( I needed a higher trajectory). I am going to sell my old clubs (I3+ blades red dot 3-pw all numbers match) but I don't have any idea of the value. The problem is that they have Rifle project X shafts but the shafts do not indicate if they are 5.5, 6.0 etc... I called ping and these shafts were not installed by Ping WRX. Clubs are in good shape however I have a low trajectory to begin with and with these clubs my ball flight was even lower. On e-bay I3+ blades go anywhere from 200-500. I have thick skin since so any opinions would be appreciated even if it is bad news. I don't know about the rifle shafts are my clubs down in the $100.00-$150.00 range?

Thanks Micheal

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