I have recently added Pagnian Motion Platform to my Obutto. The only reason i did not get the Pagnian rig at the time was their series 1 Gt rig had a narrow seat. They have now changed their seat, which is very comfy and looks way cool. Also a Great company to deal with. I don't regret buying my Obutto R3Volution it is, as solid as. Now Pagnian have made it even better. Both the Pagnian and Obutto are fully universal left or right hand drive.
Thank you matteman the GT Ultimate looks very great too + it seems that you can bring the keyboard stand right in front of you (better than the rs1, same price for the time being).
Don't remenber for the obutto but have not seen if the gt can hold the gearbox on the right and if speakers can be fixed on it.