What is a fair price for a 1972 340 ?

I have started to thin out my stash and am thinking about selling a 1972 dated 340 engine. This was rebuilt in the 90s and not used for too long before the car it was in was parked when the owner got a new Dodge Stratus. I've had it on a stand since 2013. It is an externally balanced engine but is complete except for the carburetor and exhaust manifolds. I'd include an LD340 intake and I have a forged 273 crank that could be used to make it an internally balanced engine if someone wanted it. I know what I'd like to get for it but do not know what the market is for a used 340. I heard it run but did not drive the car. What kind of price is right for an engine like this?
I'll try to get some pictures tomorrow.