Has anyone retrofitted a schlumpf on their strida?

For anyone who’s intrigued, here’s the cost breakdown:

Speed Drive Kit, including silver crank arms CHF 689
Black crank arms (optional) CHF 10
Strida Parts (EBB, sprocket, and belt) CHF 100
Easy-shift kick plates (optional, silver or black) CHF 45
Strida installation and maintenance toolset CHF 32

Schlumpf offers 4% rebate for bank transfer payments cleared within 10 days after purchase. The deal is probably only available to continental Europe though. Anyway, people who are interested should contact Jolanda office@schlumpf.ch. It’s a small company therefore it may take a few days before someone replies your inquiries. So be patient.