X2
All coffee needs to degas not just ground coffee. Storing that much coffee not bagged means that your handling it an additional time. More labor = less profit. Also if your roasting more coffee than your demand then why not roast as needed for freshness. Most roasters are 10 - 15 kilo...
Pea berry from china, humm? Peaberry comes in small and long type. They both roast differently, I roast the small taz pea berry in a medium roast, not going to dark as pea berry has lots of flavor you do not want to roast out.
Maybe you can make one for cakes too. Why do you wish to take all the artistry out of roasting? It is like baking a cake. Coffee is going to be different from lot to lot. Unless your running a really big operation knowing the information is not really needed. Have fun and let it flow, artistry...
Referrals is the best way to go. It also keeps the broker honest if you compare notes with other roasters. I buy from broker my friend referred. Comparing notes he was paying more buying 6000# per month while I buy 600# per month. Lets just say the broker got a phone call to straighten that out...