I'm looking for the same thing.
Ideas:
Order direct from the mint.. they ship them out in large bags of 400,000 when new.
Your regional fed bank.. used pennies in large bags containing 300,000 coins.
Look for banks with lobby coin machines.. they come in bags containing only 5,000 coins.. much easier to handle.
Machinery.. the RollCracker1000 can open 100 rolls per minute.
If your percentages are low.. just sort more. If your percentages are high.. just sort more