As is well documented, e.g. by the 5000 odd

pages of sketches which were found after his death, Beethoven made sometimes many versions of a work or a passage of a work.
Many of these are just try outs, only meant for himself, not for the public eye.
But there are exceptions.
One such exception is the violin concerto, of which there exist at least four different versions of the solo part by Beethoven (and one by Franz Clement, the first person to play the concerto):
a)the original part as originally composed by Beethoven
b)the part as amended by Franz Clement
c)the part as amended by Beethoven following many, but not all of these suggestions by Clement in b) , and adding new amendments
d)the part as published by Beethoven, different from c).
e)the part arranged for piano by Beethoven, again different from the published violin part d)
does anyone know of recordings/performances of especially the versions mentioned as a) and b)?
should these versions be played?
are there other works by Beethoven of which in your opinion other versions should be played (alternative ending of symphony 8 1st mvt e.g.)?