Hey Steve,
Ha, one mans 'junk'.....is another man's gold ....Comes to mind here! You get IT for nothing (?) and it becomes valuable. That's the way it goes world over. But, another saying, dumping money down a bottomless hole, may be more appropriate here,eh.
Yeah, you may locate a crank as someone says...'for a $100', but you will in all likelihood , not be able to run that crank without straightening/cleaning/cutting/polishing, etc. , none of which is cheap ! This also applies to any/all other part/assemblies needed. Heck, to check it for cracks you're going to have to have it cleaned somehow, then has it magnafluxed ! That block may make yard art , if that fits your yard décor..
With all that in mind, I would say that you will have a time trying to give it away, JMO. Gook luck with it.