Marketpress – Same products two suppliers

I see many confused with Marketpress. My situation is a little different and after testing and searching forum cannot find a solution.

Ideal Scenario:

– No commissions

– Don’t want to duplicate website as content is exactly the same

One site with two admins with their own products who receive Paypal payments directly/separately.

So all I need is two admins/users to have their own payment setting for paypal. They are selling the same type of products, shoppers don’t need to know who’s is who’s or anything.

I have installed Multisite thinking that was the way to go but by adding another ‘site’ I’m simply duplicating content in the worse possible way. Please help, if this can be done on a single install/site that would be best.