Nev, this was not an issue with the aircraft, all controls are accessable from the right seat. The aircraft has been used for flying training in the USA and Europe. Proficiency was not the issue, my instructor had spent enough time with me to be happy to sign me off as in command from the right seat knowing that this was for doing demo flights. I did actually do several hours solo from the right seat and started doing demo flights from the right.
I was not the one who prompted the mention in the ops managers article in the magazine, but after reading it I contacted the ops manager and queried it. I explained my reason for wanting to fly from the right and that I had spent the time with my instructor. The answer I was told was still no, only a current instructor is permitted to do it.
I stopped doing it at that point and no longer have the need to do it - don't do the sales thing anymore.