The most detail-oriented repro that comes to mind someone above mentioned, Frankie Montuoro's bench copies.
Juston's Circa OM-28 may be the most detail-oriented guitar I've ever seen; I have yet to play it. Bar frets ebony rod banjo tuners etc.
I think we all can agree that a guitar can be successful without being exacting in terms of closeness to original. 90% of what I like about the old guitars is probably visual.
The one seemingly (at least to me) irreproducible feature of all "great" old Martins that I have played is that they all felt feather-light, like the dry-aging process loses a few molecules a year, so that they all lose weight
