Hello, thanks for your interest in our cellular skylight shade system.
The frame for the motorized skylight shade is relatively easy to build, but this project certainly has more to it than a regular roller blind retrofit. Please review what we did with our demo so that you are comfortable with what is involved:
http://RollerTrol.com/skylight-shade-motor-kit-instructionsWe have had many customers successfully complete the installation of our ShadeSlider system (at a cost far below what it might have been), but not everyone has the required skills.
With regards to your question about the angle, it does not matter as it will work at any angle, from horizontal all the way through to vertical (and some customers have used it to make bottom-up cellular window shades).
I should also mention that the cellular material comes in many different colors, and can also be translucent or full blackout. The fabrics can be seen at our custom shade website:
http://AutomaticBlindsAndShades.comIf I can be of further assistance, please contact me anytime.
Regards, Adrian
Adrian Biffen
Customer Service
RollerTrol Automation Systems
http://RollerTrol.com