Well there you go. I guess they do make them now, but I still have never seen a older one that was left hand...
I did buy a older BAR in 338 years ago that had right hand ejection but the safety was on the left side. I simply reversed the safety back to right hand use.
Guess it boils down to money for you.
But for me if thats what I really wanted I'd just save up & buy what I really wanted. Like I've said I don't believe they made the early BARs in left hand..
Regards,