Randy from what I seen usually for used it will go for 1/2 to 2/3 the value new and will be a fair deal,much more and you'll be sitting on it.Just my 02 from what I have seen and done.But that may vary also the extent of work thats been done to the item.
I have even hard a hard time selling new things for 1/2 to 2/3 but thems the guys that have no value and want it for nothing and you pay the shipping to them.
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There Is 1 Thing Better Than Cubic Inches,,,More Of Them