Niiiiice Tiger, and wickid setup man! Sorry I've been away from the forums for a bit but was attending to some non-obutto stuff for the past couple of weeks. Anyhow, I'm off to the US tomorrow so I should be around more often.
Tiger, re a stick extension, while I'm sure it could be done, you would probably have to fab a new mount. In the near future I'll be picking up a Warthog
HOTAS for Star Citizen as well, and since this topic has come up once or twice before, I'll grab an extension to see what I come up with
Shan2, re putting your keyboard/mouse tray on the main mount. Never heard of this, but it could be done if you drill one of the many bolt patterns, available on the main mount, onto your keyboard/mouse tray. As Rogue mentioned though, the easiest solution is placing your keyboard on your left tabletop, and then you can put your mouse on the right or wherever you desire. If you are looking to have full use of your keyboard/mouse when flying or gaming I'd suggest the below....
If you fly sidestick then scoot your seat forwards, perhaps not all the way, but so it's still a comfy reach to your rudder pedals, and mount your flight controls per this fore/aft seating position. Then slide your seat all the way back and mount your Keyboard/Mouse tray mounting post just behind the throttle mount mounting post. Due to the r3v's fully articulating arm you can then, when needed, just slide your seat to the rear, articulate your keyboard/mouse tray into position and you're good to go
Of course, this also depends on other peripherals that you are running, etc.
All the best fellas, and enjoy that r3v with your SC Tiger...I know I will heh!!