I am trying my best to configure the marketpress plugin.

Hello, I am trying my best to configure the marketpress plugin. I have a multisite network which i plan on having multiple stores selling multiple products. The owners of these multiple sites will pay me a percentage. I am not sure as to what option i should select to ensure I receive a percentage of all sales and that the seller pays the paypal fees. Can you let me know what i should choose from the copied and paste info from the paypal site below? I would really appreciate some help on this. Plus I have not registered a business for my site which i plan to have this plugin installed and working on. They have requested me to upload proof of business address, ID. If i do not provide this, will this be a problem for me?

Adaptive Payments Leverage flexible payment APIs to process payments in new and innovative ways. *
Basic Payments
Chained Payments
The payments to secondary receivers are:
Instant
Delayed
Who pays the fee?

*None of the Below
*Each receiver
*Primary receiver
*Secondary receiver (for instant chained payment only)