That would be nice. Please send me your ideas or better post them here, so other MVE owners can discuss them.
Sure I think the first one really need addressing is Shipping..
The best way I have seen this complicated flow handled is by this guys...
https://m.bonanza.co...ipping_profiles
https://m.bonanza.co...1/edit_shipping
1) It allows to specify days the item will ship
2) Specify high level shipping policy (this will be displayed on product listing)
3) Specify return policy (show up on product listing)
4) Takes you to a shipping method screen
5) Once on shipping method - it allows three configuration in tabs (Free & Flat Shipping, Calculated Shipping and Other)
6) Every option has "international" shipping as a sub item ( Most vendor could offer free shipping locally but in most cases they will have to charge for international shipping)
7) When you add/edit an item in the store, you could pick what type of shipping you want to offer (Vendor might want to offer Free shipping on some and Flat rate on other and some he might not want to ship international)