This is the line you guys need to persue. Work with Adult Swim, get it done. This will appeal to vintage Mego collectors (since a lot of you dudes grew up in the 60's ) and it will appeal to teens and younger adults who are fans of SG C2C!
You can make nearly everyone using the Mego style stuff. The only body that would need to be different is Zorak. I think the line could be a big enough hit that it would eventually cost out.
I mention this to Cast-a-way because you guys could really use a good property like this and you've shown an interest in these sorts of offbeat things. There is a fan base here too, probably a considerably larger one than even Phantom and the Williams Street people would probably be up for this.
This would be a great wedge into all the old school Hanna Barbera Super Heroes; Birdman and the Herculoids specifically. And then from there... Thundarr!