I am looking for an expert, an app, or set of apps that can do the following:
Separate shipping costs into in-stock and pre-order shipping. Free shipping thresholds would be separate between the two (like HotTopic.com).
An option to ship pre-order and in stock items either together or separate (with shipping costs being appropriately adjusted) at checkout.
The ability to have separate inventory levels for pre-order and in-stock on one particular item. For example, if I have 10 in stock and 10 on pre-order, I would like the item to automatically switch to specified pre-order inventory levels if the in stock inventory runs out.
I already have pre-orders set up with appropriate buttons, tags, etc. Not looking for the basic stuff. Thanks!