Hmmm...maybe best to wait until IMSLP is back up and check what is already there, before you start scanning too many things...I seem to remember that the "Unfinished Symphony" was the only one of Schubert's symphonies for which a full score was already uploaded before IMSLP went down, and I think all the string quartets were already there (Dover reprints).
(to the moderators - maybe one of the first bits of IMSLP to be resurrected, for the benefit of all our new and potential contributors, could be an up-to-date wish list?)
Just my thoughts...
“all great composers wrote music that could be described as ‘heavenly’; but others have to take you there. In Schubert’s music you hear the very first notes, and you know that you’re there already.” - Steven Isserlis