I've decided to share some of the boards I've made for playing with friends here...
These are all custom RoboRally boards I've made.
I believe any non-standard elements are from the Robo Factory (but it also might just have had its colour changed).
My friends and I usually play without option cards, so if you feel like you need them I'm afraid you'll have to add them yourself (or maybe use an unidentified element for it).
The original boards I've made using ProFantasy's Card Cartographer 3 (CC3). The elements I've drawn myself (though not the 'empty' tiles, I believe they're from the Robo Factory too)