Just a quick question

What cam is in there now?
A used cam is a hard sell IMO.
A core crank is a $50 item. (Considering it needs machining & bearings)
A Freshly done crank with bearings is the machine & parts cost plus 50 to a 100 bingos.

These parts do not bring much, in general. What about your current pistons? And con/ rods?
If you can sell it as an assembly, that would be a good thing for a builder for someone. Shipping would kill most though. Local sale at the swap meet would bring the best bucks.
Lay it all out on the table. You never know who wants what.

Good luck!