Assuming this is not a troll job, you should know that it is against the law to sell body parts, even after you are dead. With that in mind, and if still undeterred by the thought of committing an illegal act, then why not commit a crime that will not leave you disfigured for life.
I'll bet a young, strapping lad such as yourself could make 2500 bucks easy as a male prostitute. Sure, the old bung-hole might be sore for a couple days, and you might have to spend a few bucks on Listerine to get rid of the taste of cock, but hey, at least you'd still have your house, and your fingers, AND your upper lip.
And who knows? You might even enjoy it.