Is part of your back-end going to be an online Course?
I like to keep my courses simple but powerful.
A curse can be a series of Blog posts arranged in certain order and outlined on one page.
Or it can be extremely sophisticated and conplex.
Here is a course on course creation CLICK HEREE
There are many platforms that specialize in course building. I like to keep things simple. Your course can be part of your Blog ... or Membership site