Maybe you could tease us a little and tell what coin would that be. Is it open-sourced back then or you owned it? If you owned it, it is not bad to tell the forum what coin are you talking about as it can even help the developers know if they would accept this offer or not, due to some devs will do their own research first and see if their capability would reach the revival of the dead coin you are mentioning.
8% is a high value, yet it doesn't really have any value if there would be no volume nor any circulating supply. I'd suggest you would recreate that coin onto a modern system and rebrand it. Investing on a previously dead coin is a bigger risk to take than investing on normal ones.
Hi!
Take a look
https://bitcointalksearch.org/topic/annfire-firecoin-bitblockforging-1-apr-98750-supply-150k-limit-972809
Thanks for your help!