You'd probably get more money from the parts as mentioned. I bought a good 250 and C4 for $200 on Craigslist and it had been listed for months. I tried selling the 200 & C4 out of my car on CL for months and finally just listed in the free section to get rid of it. Point being there's not a big demand for these old straight 6's...at least not in my area.
Not a big demand in my area either. Keep the carb, exhaust manifold and maybe the bracket to list for sale. Rick
You can sale some stuff to classic inlines as well. He buys balancers, carbs, adjustable rockers. Send him an email