Assume you mean the likes of kookaburu,GM,GN etc...?
If so, I didn't quite mean that big .
Yes. Them.
I think when Patriot said supplier, I presume he means people like Wrights. These would sell them on eBay, and by the time you pay for packing, eBay and PayPal fees and someone to admin all this, any savings would probably be negligible.
The buyer would also need a press to prep the wood.
If you are wanting clefts pressed,it would be better from a small company who would give you the time of day rather than the multi-national ones. Obviously ask around, and different companies will give different deals.
I think to do this, you would be able to get a small profit, however,it would be a lot of time and effort for a batmaker when he could be making bats instead for a much bigger profit.
In short, it could work for an individual.