Hello. Sorry if I speak, maybe i have a stupid idea. Did you think about suggesting a crowdfunding to the company for the game? Maybe you could use the fact of the crowdfunding to revive the nostalgia, grow the hype and find old fans of the game. Many crowdfunding campaign aim at reviving old games and it could be a good fit.
Anyway I didn't like the ending of the wiki, it looks like if they are looking for a way of suing some lawsuit on the people who will own their own code. Once a person will get involved and buy the code, how will he/she be able to demonstrate that nobody copied or stole it? It could happen that the firm could pretend somebody else, maybe some known person owns the game and cheat you.
Maybe I'm only a person who doesn't trust others and i'm a little paranoic, I'm always like that.
I wish you good luck with you project!