Selling a patent is a long process and in some case even an expensive one. You should think about first listing your patent on a website (Zyrist, www.zyrist.com) its free. Then research to find people, entrepreneurs, companies that operate in the area of your invention and write to them about your invention. You should create a short and crisp presentation about your invention. The other way is to hire a professional brokerage company but beware of companies that charge money upfront. Success fee is ok.
Patent
you can sell it.
Either a person or company holds patent on objects, such as a 'part'. Even if a part is discontinued, the company or person still holds the patent rights. It would be illegal for anyone to create the part and sell it; it would violate the patent holders' rights. You could be forced to pay thousands to millions in damages and fines.
Nothing as it is illegal to sell it (because it is a fake and breaches copyright/patent).
you could get 200-225k for it
When a patent owner dies, the patent is typically transferred to their estate or heirs. The estate or heirs can then decide to maintain or sell the patent rights.
It would be smart to get a provisional patent first. They are inexpensive and can be useful for two reasons. Reason number one, they are a patent an will protect your idea. Reason number two, it is much faster to acquire a provisional patent than it is to apply for a registered patent.
Yes. You can sell nearly anything to the right buyer.
You can sell it at any time. However a marking of "patent pending" is only a warning (and maybe a deterrent to particularly risk averse would-be infringers) and does not provide any enforcement value. Once your pending patent issues, you can begin to enforce your patent rights if desired.
However much your dealer willing to sell you one for.
it depends on what parts you want to sell
it cost $2