I talked to my roaster today and we also have 40g bags and 200g bags. Pricing and shipping hasn't been determined for them yet, but the larger bags will be better value.
I have edited the first post with a bit more information.
Looks like the plan is starting to come together for you. Good luck
It really is. I'm still working on the shopping cart software and what the best way to list the coffee/bags. I've asked a webdesigner friend of mine to have a look at the site then it's a matter of swapping domains and setting up the SSL.