How to sell access to certain pages through WordPress

Hello,

I’d like to sell access to certain pages. For instance, lets say we have:

• Page A
• Page B
• Page C

I want to make it that you could buy access to Page A, Page B and Page C, or Page B and Page C or just Page B.

In an ideal scenario you’d be able to add which Pages you want to buy to something like a shopping cart, pay for them and then have access to those pages now and when you log back in. You could even buy additional pages down the track. These just *just* be WordPress pages. Trying to avoid having to download PDF’s or something. We are in a market that has niche requirements and not concerned about piracy.

I’ve reviewed a number of solutions including:

• S2Member
• Paid Memberships Pro
• Cart66
• etc…

And nothing seems to quite do this, any suggestions would be very much welcomed.