Two PayPal accounts, One Zencart store

I'm using ZenCart 1.3.8. and I have a pretty straightforward question that I couldn't seem to find in the forums.

The store is running just fine with one PayPal, but there are two partners, from different states, selling items in the store and they would like to link certain items with their own respective PayPal accounts.

I know I could just install a second store on the same server and hyperlink the heck out of them to make it appear as one store, but I was hoping there might be a quicker fix.

Thanks

I don't think that could be done without a lot of custom coding. Then you'd need to figure out what happens when I buy items from each partner in the same order.