OHV 195.6 Head Value?

I have two 196 OHV heads that I believe to be good. One had a broken valve. The other had seals and a few valves replaced and ran fine prior to a bottom end failure.  I know good ones are rare and cracked ones are worthless. I'm kicking around the Idea of getting them magnafluxed and checked out by a machine shop. i expect this will run around $100?. I have a buddy at a dealership that could ship them for me cheap but I'm wondering how much I could ask for them assuming they check out ok and I have paperwork to back it up. If I could make some of the money I spent on them already back and help someone out by selling them a known good one that they wouldn't have to worry about It be worth it. I'd hate to just scrap them if there good parts. 

Both for the Cast iron engine. Both had oil filters.

having just 'been there', for a block NOT magnafluxed, I would not pay for, period. For a 199/232/258 different story, but the Nash engine is too prone to be cracked in it's extreme old age.

A NOS head on ebay last fall (Norwalk, OH?) sold for something like $150 plus shipping. I think the value is somewhere in that $100-150 range, though a good, used head is a bit hard to find! (Shipping cost is part of the challenge of asking much more than that.)