I started designing mod files and even recreating the original Laser-cut DFX files into Printable STL format. If you have a printer you can print your own 2014 Printrbot Simple 1405. If you don't you can commission an owner to print you one or even use a local 3d print service. Those and all my files can be located at http://www.thingiverse.com/metaled/designs
I have a ton of subjects I would like to share hints and tips for. Don't get me wrong, I have ordered new Ultrasonic Sensors and do plan to continue sharing that robotics project. But I also plan to share Raspberry Pi, PcDuino, Arduino, Intel Edison and lots of electronic circuits with the Lawn Mower Robot assembly!
I'll try to find time to share as much as possible and if you have any questions, please feel free to ask in the comment sections!