HP5 - Could this meet our needs?

My organization is looking to digitize a suite of Pre-K-2 curricula on animal adaptations.

We are looking to create a solution that will enable us to deliver a curriculum tool kit that will:
i) Provide children a range of interactive learning activities e.g.
Color by numbers
Drag shapes onto a wireframe (e.g to create an animal)
Sort by criteria
Find an animal (in an image)
Matching (e.g. teeth to animals)
Set matching (e.g which animals can see well, which eat grass)
ii) Embed the activities in a range of multimedia:
Interactive (see below) and offline activities
Lesson plans
Class room and out of school/home extensions (follow up activities)
Information sheets, including science scheet
iii) Allow us to overlay our organiztion's own design and branding on the experience.

Our preference is to identify a toolkit for creating the above activities that we could then embed in our our own CMS (Content Management System). However we are willing to look at more broader platforms.

Ideally, the approach would allow our organization:
ii) To deploy the content to a range of devices
iii) To take the approach to develop curricula

We have begun looking at HP5. How could we get guidance on what effort it would take for HP5 to be the tool kit to provide the components we want for the children's activities?