I wouldn't feel too bad about stripping and flipping- somebody is going to buy the part and put it on a bike that will appreciate it- I sure wouldn't bid on a long-cage Huret der for example if I didn't absolutely need one to make my restoration project right. So it goes from one bike to another. Zero sum game. Maybe the other bike is even better, gets ridden a lot and is really loved by its owner.
But I agree- list it once on Ebay with a BIN of what you think you can get for the parts minus 15% and if it doesn't sell, part it out.