Motion graphics for product explainer videos

We need four explainer videos, about ninety seconds each, animated from a script and a set of screen recordings.

What we have

Brand guidelines, a colour palette we like, and a designer who can give you assets. What we do not have is anybody who can animate.

What we want back

Something reusable. We will need a fifth video in three months, and we would rather commission a system than four one-offs.

Paid per finished minute. Say what you think the four will take.