With this prop in particular, you have multiple options.
I for one would gladly add the MR saber to my collection if found for a great price.
My collection started with Icons sabers, which were then replaced by Master Replicas sabers, and now I seek more accurate sabers made by hobbyists with an eye for detail. I also build my own with replica and original parts.
As for your initial question, the MR LE Anakin AOTC saber in my opinion ranks high on the accuracy scale, about 90%
This from a guy who thinks adding the flaws of the original prop to the replica is furthering it's accuracy.