How can we revive this? Would be keen to get this going, if the original owner doesn't have time for this, can't he post the files here so someone else can finish God's work?
Well, the OP here doesn't appear to be active on this forum or in this hobby anymore. They already provided the intended pantones, the GMK stock color of choice, and the kitting renders. Everything is there. You could simply pick up where they left off. Make some new renders with your preferred kitting, make a post with an IC google form and then go from there.
You could also try reaching out to them on a different platform if you think they might be around somewhere and ask for persmission, but i think the statue of limitations has been exceeded here.