Course with Two Prices with different Vidoes

We are using LearnPress Plugin, I want to add 2 prices for each course eg, 100, 200.
How i can set two prices for each course and how i can add different videos so that student can see the videos as per the purchased course and how to restrict the student to the video who have not buy the course. Means Student can read the course without purchase course but he/she should not be able to see videos, videos should be displayed as per the purchased plan.I also want to use Stripe Payment gateway.

Please help me, which addon i should buy and use.