While the idea is a good one, the execution of it is difficult. At least going about it this way. The ol' adage "you can please some of the people some of the time" applies here.
Probably the best course of action is to FIRST contact either P&C or Smokingpipes and see if a large bulk purchase on a blend is something they could either entertain, or accommodate. I would think P&C would be able to do something with the H&H line(my assumption Russ, keep me honest here) or Smokingpipes could do something with the C&D/Pease/Capt.Earl line due to their connection with Laudisi. It's a business and quantity is king for bulk purchases, which is the power of bulk buys. Quantity is also relative. A big retailer like them would might have a different definition of what a "large" order is.
Now lets say we get 20 people wanting to buy 10 tins of X tobacco each. That's 200 tins, really not that much to a big retailer.(I don't have purchasing numbers from their business so I dont know it may be). There is a profit margin they all want to see, so we have to find out a number that's a win/win for both parties buyer/seller. Once you find that number, find out what blends that can be applied to. Get THAT list and go from there to the forums asking for people interested.
How will this be paid for? Who's going to collect the funds and cut the check to the seller? How will purchase be be distributed to the interested parties? All questions that will need to be answered
Bulk purchases benefit the seller when all they have to do is provide a large quantity of product to a single location. When they have to distribute it all, they have the overhead of doing so which eats in to profits/savings of the deal for all involved.
The devil is in the details boys, picking the blend to purchase is actually the easy part.
Now, I'm not trying to poo poo the idea, I'm just pointing out the realities of what you're looking to do. It can be done, but it requires some research and coordination.
There was a thread on this forum 6 moths ago when Smokinpipes was asked to do a special run of Chenet's Cake in 1 lb. cans/blocks if there was enough interest. They came back and said they would do it, but said they were already working on releasing the Cellar Series in 8oz cans in the coming months. Everyone just decided to wait on the 1/2 lb cans.
Which brings up another point, the majority of people on the internet are lazy, they'll always choose the path of least resistance.
Anyway, this idea has potential, the "ducks just need lined up."