I spent a year in my (RHD, obviously) Yaris in France and it wasnt much of a pain, you soon become used to the enlarged blind spots and such.
Only has some mild annoyances- car parks reaching across to get a ticket, blind corners/junctions where they use convex mirrors to help with vision and the mirror is aimed at the wrong side of the car, overtaking can be a pain but just a case of dropping a lot further back to see around cars and isnt a problem if the car is fast enough (which Im assuming with your vehicular past it would be).
Other than minor annoyances that dont come up particularly often it is fine and not an issue, wouldnt let it stop you if its something very special, what you after?
Jaimz