After listening to the original source tracks again by Nils, I really didn't feel like messing with them, they were so beautiful on their own. Despite that, I had a go anyway - this is the result of two attempts.
The first was running "Re" through my monotron and the second was isolating sections I liked from "Do" and stretched them with Adobe and then looped. Then I arbitrarily inserted bits from attempt #1 into attempt #2. Voila.
Created as a part of the Disquiet Junto project.