I hope I'm not too late. Please count me in for the GB. As far as I know, we will not be able to share the amount unless we opt for an enterprise account, for which I have absolutely no experience. If you have found some partners and have bought the enterprise account already (given that this thread was started around 7 months back), I would very much like to hop in. And if you still are looking for group-buy partners, i'll gladly be one. Please share if you have any updates regarding the procedure and pricing etc. A personal account on envato elements is around $200 per year which is way out of my reach.
I am also looking forward to a StoryBlocks Unlimited All-Access group-buy, and willing to join if someone already has an all-access enterprise account.