To sell it to anyone else but a large or giant company like Sony/Crunchyroll is going to be hard as I said. For what we as consumers would like you'd need to find another otaku or group of them who are wealthy and/or trustworthy enough to pay in installments out of ongoing gross profits, and you'd have to trust their business sense.
You'd want someone like my father to do some of the footwork and all of deal making to avoid distractions from running the business and lowering its value. Or you have to find an interested big player of which there just aren't very many. And here this clearly fits in with Sony's previous actions in America like buying Funimation and Crunchyroll, but unfortunately they're likely one of the worst case buyers.
From the viewpoint of the owners, Wikipedia says Shawne Kleckner who's still with it is 50 and the company was founded in 1987, 35 years is a long time to be running a company. Wven if it started out as a shell to buy and resell telescopes, pretty soon they started bringing the classic Astro Boy to the direct to home market and in due course became a competitive general mail order reseller as well as localizer. When TokyoPop nuked their reselling arm after Y2K they became the highest profile one as far as I know, not counting increasingly untrustworthy Amazon. Which Right Stuff regularly also uses as a platform while doing their own fulfillment.
