Like this one
by Kaori Muraji (must be a pretty old video)?
It has a piano accompaniment, I don't know of any completely solo arrangements.
The piano/guitar arrangement usually sold in Japan is a Spanish import published by Ediciones Joaquin Rodrigo (I think there may be another Spanish publisher putting it out, but maybe it's the same edition re-sold).
I see that musicroom stock it, but it would be worth phoning or e-mailing, because they seem to have a raft of different editions - guitar and piano parts published separately, excerpts from the concerto published separately, etc. (And possibly the excerpts are for unaccompanied guitar???)