This is a lovely piece but my advice is to go back & check original sources as there are mistakes & dubious notes even in the corrected versions!
I am not at liberty to check in detail at the moment - I'll maybe do so later if I remember / get time!
Personally I would fill in the chords a little too (being guided by original sources) as the arrangement sounds a bit bare in places.
Even if the arrangement followed the original bass and melody exactly it would not necessarily produce a great result because the piece was not conceived as that originally (ie the original chords / inner parts make the overall character of the piece different from the arrangement).
As I said, I don't have the original to hand at the moment but, playing through the last version above (Schneider), some sections sound weak probably for the above reason (or else a possible mistake), e.g. bar/measure 19, 4th quaver (8th note) bass E, but most especially the final chord - an E minor 2nd inversion sounds highly unlikely & frankly - wrong. As far as I remember the original ends on the Dominant chord of the relative minor (because the final movement is in the relative minor). If so I would write that in & play it that way (even if not playing the last movement of the concerto) because in the original it sounds quite dramatic. To do this just end on the final d# (with the f# below & repeat the bass B if you wish) with a pause at the very end.